unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
blob f96cdab45a94c4e62179458d762a1c29b101dab2 114413 bytes (raw)
name: etc/NEWS 	 # note: path name is non-authoritative(*)

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
 
GNU Emacs NEWS -- history of user-visible changes.

Copyright (C) 2017-2021 Free Software Foundation, Inc.
See the end of the file for license conditions.

Please send Emacs bug reports to 'bug-gnu-emacs@gnu.org'.
If possible, use 'M-x report-emacs-bug'.

This file is about changes in Emacs version 28.

See file HISTORY for a list of GNU Emacs versions and release dates.
See files NEWS.27, NEWS.26, ..., NEWS.18, and NEWS.1-17 for changes
in older Emacs versions.

You can narrow news to a specific version by calling 'view-emacs-news'
with a prefix argument or by typing 'C-u C-h C-n'.

Temporary note:
+++ indicates that all relevant manuals in doc/ have been updated.
--- means no change in the manuals is needed.
When you add a new item, use the appropriate mark if you are sure it
applies, and please also update docstrings as needed.

\f
* Installation Changes in Emacs 28.1

---
** Support for building with Motif has been removed.

** Cairo graphics library is now used by default if found.
'--with-cairo' is now the default, if the appropriate development files
are found by 'configure'.  Note that building with Cairo means using
Pango instead of libXFT for font support.  Since Pango 1.44 has
removed support for bitmapped fonts, this may require you to adjust
your font settings.

Note also that 'FontBackend' settings in ".Xdefaults" or
".Xresources", or 'font-backend' frame parameter settings in your init
files, may need to be adjusted, as 'xft' is no longer a valid backend
when using Cairo.  Use 'ftcrhb' if your Emacs was built with HarfBuzz
text shaping support, and 'ftcr' otherwise.  You can determine this by
checking 'system-configuration-features'.  The 'ftcr' backend will
still be available when HarfBuzz is supported, but will not be used by
default.  We strongly recommend building with HarBuzz support.  'x' is
still a valid backend.

---
** Building without double buffering support.
'configure --with-xdbe=no' can now be used to disable double buffering
at build time.

---
** 'configure' now warns about building with libXft support.
libXft is unmaintained, and causes a number of problems with modern
fonts including but not limited to crashes; support for it may be
removed in a future version of Emacs.  Please consider using
Cairo + HarfBuzz instead.

---
** 'configure' now warns about not using HarfBuzz if using Cairo.
We want to encourage people to use the most modern font features
available, and this is the Cairo graphics library + HarfBuzz for font
shaping, so 'configure' now recommends that combination.

---
** The ftx font backend driver has been removed.
It was declared obsolete in Emacs 27.1.

---
** The configure option '--without-makeinfo' has been removed.
This was only ever relevant when building from a repository checkout.
This now requires makeinfo, which is part of the texinfo package.

---
** Support for building with '-fcheck-pointer-bounds' has been removed.
GCC has withdrawn the '-fcheck-pointer-bounds' option and support for
its implementation has been removed from the Linux kernel.

---
** Emacs no longer supports old OpenBSD systems.
OpenBSD 5.3 and older releases are no longer supported, as they lack
proper pty support that Emacs needs.

\f
* Startup Changes in Emacs 28.1

** Emacs can support 24-bit color TTY without terminfo database.
If your text-mode terminal supports 24-bit true color, but your system
lacks the terminfo database, you can instruct Emacs to support 24-bit
true color by setting 'COLORTERM=truecolor' in the environment.  This is
useful on systems such as FreeBSD which ships only with "etc/termcap".

\f
* Changes in Emacs 28.1

+++
** New command 'font-lock-update', bound to 'C-x x f'.
This command updates the syntax highlighting in this buffer.

** The new NonGNU ELPA archive is enabled by default alongside GNU ELPA.

+++
** New command 'recenter-other-window', bound to 'S-M-C-l'.
Like 'recenter-top-bottom' acting in the other window.

** Minibuffer scrolling is now conservative by default.
This is controlled by the new variable 'scroll-minibuffer-conservatively'.

In addition, there is a new variable
'redisplay-adhoc-scroll-in-resize-mini-windows' to disable the
ad-hoc auto-scrolling when resizing minibuffer windows.  It has been
found that its heuristic can be counter productive in some corner
cases, tho the cure may be worse than the disease.  This said, the
effect should be negligible in the vast majority of cases anyway.

+++
** Improved handling of minibuffers on switching frames.
By default, when you switch to another frame, an active minibuffer now
moves to the newly selected frame.  Nevertheless, the effect of what
you type in the minibuffer happens in the frame where the minibuffer
was first activated.  An alternative behavior is available by
customizing 'minibuffer-follows-selected-frame' to nil.  Here, the
minibuffer stays in the frame where you first opened it, and you must
switch back to this frame to continue or abort its command.  The old
behavior, which mixed these two, can be approximated by customizing
'minibuffer-follows-selected-frame' to a value which is neither nil
nor t.

+++
** New system for displaying documentation for groups of functions.
This can either be used by saying 'M-x shortdoc-display-group' and
choosing a group, or clicking a button in the "*Help*" buffers when
looking at the doc string of a function that belongs to one of these
groups.

---
** Improved "find definition" feature of *Help* buffers.
Now clicking on the link to find the definition of functions generated
by 'cl-defstruct', or variables generated by 'define-derived-mode',
for example, will go to the exact place where they are defined.

** New variable 'redisplay-skip-initial-frame' to enable batch redisplay tests.
Setting it to nil forces the redisplay to do its job even in the
initial frame used in batch mode.

---
** Support for the 'strike-through' face attribute on TTY frames.
If your terminal's termcap or terminfo database entry has the 'smxx'
capability defined, Emacs will now emit the prescribed escape
sequences necessary to render faces with the 'strike-through'
attribute on TTY frames.

+++
** Emacs now defaults to UTF-8 instead of ISO-8859-1.
This is only for the default, where the user has set no 'LANG' (or
similar) variable or environment.  This change should lead to no
user-visible changes for normal usage.

+++
** New variables that hold default buffer names for shell output.
The new constants 'shell-command-buffer-name' and
'shell-command-buffer-name-async' store the default buffer names
for the output of, respectively, synchronous and async shell
commands.

** Support for '(box . SIZE)' 'cursor-type'.
By default, 'box' cursor always has a filled box shape.  But if you
specify 'cursor-type' to be '(box . SIZE)', the cursor becomes a hollow
box if the point is on an image larger than 'SIZE' pixels in any
dimension.

+++
** New user option 'word-wrap-by-category'.
When word-wrap is enabled, and this option is non-nil, that allows
Emacs to break lines after more characters than just whitespace
characters.  In particular, this significantly improves word-wrapping
for CJK text mixed with Latin text.

---
** Rudimentary support for the 'st' terminal emulator.
Emacs now supports 256 color display on the 'st' terminal emulator.

---
** Mouse wheel scrolling now works on more parts of frame's display.
When using 'mwheel-mode', the mouse wheel will now scroll also when
the mouse cursor is on the scroll bars, fringes, margins, header line,
and mode line.  ('mwheel-mode' is enabled by default on most graphical
displays.)

---
** Mouse wheel scrolling now defaults to one line at a time.

+++
** Mouse wheel scrolling with Shift modifier now scrolls horizontally.
This works in text buffers and over images.  Typing a numeric prefix arg
(e.g. 'M-5') before starting horizontal scrolling changes its step value.
The value is saved in the user option 'mouse-wheel-scroll-amount-horizontal'.

---
** The default value of 'frame-title-format' and 'icon-title-format' has changed.
These variables are used to display the title bar of visible frames
and the title bar of an iconified frame.  They now show the name of
the current buffer and the text "GNU Emacs" instead of the value of
'invocation-name'.  To get the old behavior back, add the following to
your init file:

    (setq frame-title-format '(multiple-frames "%b"
                              ("" invocation-name "@" system-name)))

+++
** 'nobreak-char-display' now also affects all non-ASCII space characters.
Previously, this was limited only to NO-BREAK-SPACE and hyphen
characters.  Now it also covers the rest of the non-ASCII Unicode
space characters.

---
** Prefer "chat.freenode.net" to "irc.freenode.net".
"chat.freenode.net" has been the preferred address for connecting to the
freenode IRC network for years now.  Occurrences of "irc.freenode.net"
have been replaced with "chat.freenode.net" throughout Emacs.

+++
** New functions 'null-device' and 'path-separator'.
These functions return the connection local value of the respective
variables.  This can be used for remote hosts.

** Emacs now prints a backtrace when signaling an error in batch mode.
This makes debugging Emacs Lisp scripts run in batch mode easier.  To
get back the old behavior, set the new variable
'backtrace-on-error-noninteractive' to a nil value.

** 'redisplay-skip-fontification-on-input' helps Emacs keep up with fast input.
This is another attempt to solve the problem of handling high key repeat rate
and other "slow scrolling" situations.  It is hoped it behaves better
than 'fast-but-imprecise-scrolling' and 'jit-lock-defer-time'.
It is not enabled by default.

+++
** Modifiers now go outside angle brackets in pretty-printed key bindings.
For example, 'RET' with Control and Meta modifiers is now shown as
'C-M-<return>' instead of '<C-M-return>'.  Either variant can be used
as input; functions such as 'kbd' and 'read-kbd-macro' accept both
styles as equivalent (they have done so for a long time).

+++
** New user option 'lazy-highlight-no-delay-length'.
Lazy highlighting of matches in Isearch now starts immediately if the
search string is at least this long.  'lazy-highlight-initial-delay'
still applies for shorter search strings, which avoids flicker in the
search buffer due to too many matches being highlighted.

+++
** A new keymap for buffer actions has been added.
The 'C-x x' keymap now holds keystrokes for various buffer-oriented
commands.  The new keystrokes are 'C-x x g' ('revert-buffer'),
'C-x x r' ('rename-buffer'), 'C-x x u' ('rename-uniquely'), 'C-x x n'
('clone-buffer'), 'C-x x i' ('insert-buffer'), 'C-x x t'
('toggle-truncate-lines') and 'C-x x f' ('font-lock-update').

---
** Commands 'set-frame-width' and 'set-frame-height' can now get their
input using the minibuffer.

\f
* Editing Changes in Emacs 28.1

+++
** New command 'execute-extended-command-for-buffer'.
This new command, bound to 'M-S-x', works like
'execute-extended-command', but limits the set of commands to the
commands that have been determined to be particularly useful with the
current mode.

+++
** New user option 'read-extended-command-predicate'.
This user option controls how 'M-x' performs completion of commands when
you type 'TAB'.  By default, any command that matches what you have
typed is considered a completion candidate, but you can customize this
option to exclude commands that are not applicable to the current
buffer's major and minor modes, and respect the command's completion
predicate (if any).

---
** 'eval-expression' now no longer signals an error on incomplete expressions.
Previously, typing 'M-: ( RET' would result in Emacs saying "End of
file during parsing" and dropping out of the minibuffer.  The user
would have to type 'M-: M-p' to edit and redo the expression.  Now
Emacs will echo the message and allow the user to continue editing.

+++
** 'eval-last-sexp' now handles 'defvar'/'defcustom'/'defface' specially.
This command would previously not redefine values defined by these
forms, but this command has now been changed to work more like
'eval-defun', and reset the values as specified.

+++
** Standalone 'M-y' uses the minibuffer to complete previous kills.
When 'M-y' is typed not after a yank command, it activates the minibuffer
where you can browse previous kills using the minibuffer history or
completion.  In Isearch, you can bind 'C-s M-y' to the command
'isearch-yank-pop' that uses the minibuffer with completion on
previous kills to read a string and append it to the search string.

---
** New user options 'copy-region-blink-delay' and 'delete-pair-blink-delay'.
'copy-region-blink-delay' specifies a delay to indicate the region
copied by 'kill-ring-save'.  'delete-pair-blink-delay' specifies
a delay to show a paired character to delete.

+++
** New command 'undo-redo'.
It undoes previous undo commands, but doesn't record itself as an
undoable command.

+++
** 'read-number' now has its own history variable.
Additionally, the function now accepts a HIST argument which can be
used to specify a custom history variable.

+++
** Input history for 'goto-line' can now be made local to every buffer.
In any event, line numbers used with 'goto-line' are kept in their own
history list.  This should help make faster the process of finding
line numbers that were previously jumped to.  By default, all buffers
share a single history list.  To make every buffer have its own
history list, customize the user option 'goto-line-history-local'.

+++
** New command 'goto-line-relative' to use in a narrowed buffer.
It moves point to the line relative to the accessible portion of the
narrowed buffer.  'M-g M-g' in Info is rebound to this command.
When 'widen-automatically' is non-nil, 'goto-line' widens the narrowed
buffer to be able to move point to the inaccessible portion.
'goto-line-relative' is bound to 'C-x n g'.

+++
** When called interactively, 'goto-char' now offers the number at
point as default.

+++
** When 'suggest-key-bindings' is non-nil, the completion list of 'M-x'
shows equivalent key bindings for all commands that have them.

** Autosaving via 'auto-save-visited-mode' can now be inhibited by
setting the variable 'auto-save-visited-mode' buffer-locally to nil.

** New commands to describe buttons and widgets have been added.
'widget-describe' (on a widget) will pop up a help buffer and give a
description of the properties.  Likewise 'button-describe' does the
same for a button.

** Obsolete commands are no longer hidden from command completion.
Completion of command names now considers obsolete aliases as
candidates.  Invoking a command via an obsolete alias now mentions the
obsolescence fact and shows the new name of the command.

+++
** New command 'revert-buffer-with-fine-grain'.
Revert a buffer trying to be as non-destructive as possible,
preserving markers, properties and overlays.  The new variable
'revert-buffer-with-fine-grain-max-seconds' specifies the maximum
number of seconds that 'revert-buffer-with-fine-grain' should spend
trying to be non-destructive.

+++
** New command 'memory-report'.
This command opens a new buffer called "*Memory Report*" and gives a
summary of where Emacs is using memory currently.

+++
** New user option 'isearch-direction-change-changes-match'.
When this option is set, direction changes in Isearch move to another
search match, if there is one, instead of moving point to the other
end of the current match.

** Outline

+++
*** New commands to cycle heading visibility.
Typing 'TAB' on a heading line cycles the current section between
"hide all", "subheadings", and "show all" states.  Typing 'S-TAB'
anywhere in the buffer cycles the whole buffer between "only top-level
headings", "all headings and subheadings", and "show all" states.

*** New user option 'outline-minor-mode-cycle'.
This user option customizes 'outline-minor-mode', with the difference
that 'TAB' and 'S-TAB' on heading lines cycle heading visibility.
Typing 'TAB' on a heading line cycles the current section between
"hide all", "subheadings", and "show all" states.  Typing 'S-TAB' on a
heading line cycles the whole buffer between "only top-level
headings", "all headings and subheadings", and "show all" states.

*** New user option 'outline-minor-mode-highlight'.
This user option customizes 'outline-minor-mode'.  It puts
highlighting on heading lines using standard outline faces.  This
works well only when there are no conflicts with faces used by the
major mode.

\f
* Changes in Specialized Modes and Packages in Emacs 28.1

** Benchmark
*** New function 'benchmark-call' to measure the execution time of a function.
Additionally, the number of repetitions can be expressed as a minimal duration
in seconds.

** Macroexp
---
*** New function 'macroexp-file-name' to know the name of the current file.
---
*** New function 'macroexp-compiling-p' to know if we're compiling.
---
*** New function 'macroexp-warn-and-return' to help emit warnings.
This used to be named 'macroexp--warn-and-return' and has proved useful
and well-behaved enough to lose the "internal" marker.

** 'blink-cursor-mode' is now enabled by default regardless of the UI.
It used to be enabled when Emacs is started in GUI mode but not when started
in text mode.  The cursor still only actually blinks in GUI frames.

** Bindat

+++
*** New 'Bindat type expression' description language.
This new system is provided by the new macro 'bindat-type' and
obsoletes the old data layout specifications.  It supports
arbitrary-size integers, recursive types, and more.  See the Info node
"(elisp) Byte Packing" in the ELisp manual for more details.

** pcase

+++
*** The 'or' pattern now binds the union of the vars of its sub-patterns.
If a variable is not bound by the subpattern that matched, it gets bound
to nil.  This was already sometimes the case, but it is now guaranteed.

+++
*** The 'pred' pattern can now take the form '(pred (not FUN))'.
This is like '(pred (lambda (x) (not (FUN x))))' but results
in better code.

---
*** New function 'pcase-compile-patterns' to write other macros.

+++
** profiler.el
The results displayed by 'profiler-report' now have the usage figures
at the left hand side followed by the function name.  This is intended
to make better use of the horizontal space, in particular eliminating
the truncation of function names.  There is no way to get the former
layout back.

** Loading dunnet.el in batch mode doesn't start the game any more.
Instead you need to do "emacs -f dun-batch" to start the game in
batch mode.

** Emacs Server

+++
*** New user option 'server-client-instructions'.
When emacsclient connects, Emacs will (by default) output a message
about how to exit the client frame.  If 'server-client-instructions'
is set to nil, this message is inhibited.

** Perl mode

---
*** New face 'perl-non-scalar-variable'.
This is used to fontify non-scalar variables.

** Python mode

*** 'python-shell-interpreter' now defaults to python3 on systems with python3.

*** 'C-c C-r' can now be used on arbitrary regions.
The command previously extended the start of the region to the start
of the line, but will now actually send the marked region, as
documented.

** Ruby mode

*** 'ruby-use-smie' is declared obsolete.
SMIE is now always enabled and 'ruby-use-smie' only controls whether
indentation is done using SMIE or with the old ad-hoc code.

---
** Specific warnings can now be disabled from the warning buffer.
When a warning is displayed to the user, the resulting buffer now has
buttons which allow making permanent changes to the treatment of that
warning.  Automatic showing of the warning can be disabled (although
it is still logged to the "*Messages*" buffer), or the warning can be
disabled entirely.

** mspool.el

---
*** Autoload the main entry point 'mspool-show'.

** Windows

+++
*** New 'display-buffer' function 'display-buffer-use-least-recent-window'.
This is like 'display-buffer-use-some-window', but won't reuse the
current window, and when called repeatedly will try not to reuse a
previously selected window.

*** New function 'window-bump-use-time'.
This updates the use time of a window.

*** The key prefix 'C-x 4 1' displays next command buffer in the same window.
It's bound to the command 'same-window-prefix' that requests the buffer
of the next command to be displayed in the same window.

*** The key prefix 'C-x 4 4' displays next command buffer in a new window.
It's bound to the command 'other-window-prefix' that requests the buffer
of the next command to be displayed in a new window.

** Frames

*** The key prefix 'C-x 5 5' displays next command buffer in a new frame.
It's bound to the command 'other-frame-prefix' that requests the buffer
of the next command to be displayed in a new frame.

** Tab Bars

*** The key prefix 'C-x t t' displays next command buffer in a new tab.
It's bound to the command 'other-tab-prefix' that requests the buffer
of the next command to be displayed in a new tab.

+++
*** New command 'C-x t C-r' to open file read-only in other tab.

---
*** The tab bar is frame-local when 'tab-bar-show' is a number.
Show/hide the tab bar independently for each frame, according to the
value of 'tab-bar-show'.

---
*** New command 'toggle-frame-tab-bar'.
It can be used to enable/disable the tab bar individually on each frame
independently from the value of 'tab-bar-mode' and 'tab-bar-show'.

---
*** New user option 'tab-bar-format' defines a list of tab bar items.
When it contains 'tab-bar-format-global' (possibly appended after
'tab-bar-format-align-right'), then after enabling 'display-time-mode'
(or any other mode that uses 'global-mode-string') it displays time
aligned to the right on the tab bar instead of the mode line.
When 'tab-bar-format-tabs' is replaced with 'tab-bar-format-tabs-groups',
then the tab bar displays tab groups.

---
*** 'Mod-9' bound to 'tab-last' now switches to the last tab.
It also supports a negative argument.

---
*** New command 'tab-duplicate' bound to 'C-x t n'.

---
*** 'C-x t N' creates a new tab at the specified absolute position.
It also supports a negative argument.

---
*** 'C-x t M' moves the current tab to the specified absolute position.
It also supports a negative argument.

---
*** 'C-x t G' assigns a group name to the tab.
'tab-close-group' can close all tabs that belong to the selected group.
The user option 'tab-bar-new-tab-group' defines the default group of a
new tab.  After customizing 'tab-bar-tab-post-change-group-functions'
to 'tab-bar-move-tab-to-group', changing the tab group will also move it
closer to other tabs in the same group.

---
*** New user option 'tab-bar-tab-name-format-function'.

---
*** New user option 'tab-line-tab-name-format-function'.

---
*** The tabs in the tab line can now be scrolled using horizontal scroll.
If your mouse or trackpad supports it, you can now scroll tabs when
the mouse pointer is in the tab line by scrolling left or right.

---
*** New tab-line faces and options.
The face 'tab-line-tab-special' is used for tabs whose buffers are
special, i.e. not file-backed.  The face
'tab-line-tab-inactive-alternate' is used to display inactive tabs
with an alternating background color, making them easier to
distinguish between, especially if the face 'tab-line-tab' is
configured to not display with a box; this alternate face is only
applied when the option 'tab-line-tab-face-functions' is
so-configured.  That option may also be used to customize tab-line
faces in other ways.

** Occur mode

*** New bindings in occur-mode, 'next-error-no-select' bound to 'n' and
'previous-error-no-select' bound to 'p'.

*** The new command 'recenter-current-error', bound to 'l' in Occur or
compilation buffers, recenters the current displayed occurrence/error.

** EIEIO

+++
*** The macro 'oref-default' can now be used with 'setf'.
It is now defined as a generalized variable that can be used with
'setf' to modify the value stored in a given class slot.

** New minor mode 'cl-font-lock-built-in-mode' for 'lisp-mode'.
The mode provides refined highlighting of built-in functions, types,
and variables.

** Archive mode

---
*** Archive Mode can now parse ".squashfs" files.

*** Can now modify members of 'ar' archives.

*** Display of summaries unified between backends.

*** New user option 'archive-hidden-columns' and command
'archive-hideshow-column'.  These let you control which columns are
displayed and which are kept hidden.

---
*** New command bound to 'C': 'archive-copy-file'.
This command extracts the file under point and writes the data to a
file.

** Emacs Lisp mode

*** The mode-line now indicates whether we're using lexical or dynamic scoping.

*** A space between an open paren and a symbol changes the indentation rule.
The presence of a space between an open paren and a symbol now is
taken as a statement by the programmer that this should be indented
as a data list rather than as a piece of code.

** Calendar

+++
*** New user option 'calendar-time-zone-style'.
If 'numeric', calendar functions (eg 'calendar-sunrise-sunset') that display
time zones will use a form like "+0100" instead of "CET".

** Dired

---
*** Behavior change on 'dired-clean-confirm-killing-deleted-buffers'.
Previously, if 'dired-clean-up-buffers-too' was non-nil, and
'dired-clean-confirm-killing-deleted-buffers' was nil, the buffers
wouldn't be killed.  This combination will now kill the buffers.

+++
*** New user option 'dired-switches-in-mode-line'.
This user option controls how 'ls' switches are displayed in the mode
line, and allows truncating them (to preserve space on the mode line)
or showing them literally, either instead of, or in addition to,
displaying "by name" or "by date" sort order.

---
*** Broken and circular links are shown with the 'dired-broken-symlink' face.

*** '=' ('dired-diff') will now put all backup files into the 'M-n' history.
When using '=' on a file with backup files, the default file to use
for diffing is the newest backup file.  You can now use 'M-n' to quickly
select a different backup file instead.

+++
*** New user option 'dired-maybe-use-globstar'.
If set, enables globstar (recursive globbing) in shells that support
this feature, but turn it off by default.  This allows producing
directory listings with files matching a wildcard in all the
subdirectories of a given directory.  The new variable
'dired-enable-globstar-in-shell' lists which shells can have globstar
enabled, and how to enable it.

+++
*** New user option 'dired-copy-dereference'.
If set to non-nil, Dired will dereference symbolic links when copying.
This can be switched off on a per-usage basis by providing
'dired-do-copy' with a 'C-u' prefix.

*** New user option 'dired-mark-region' affects all Dired commands
that mark files.  When non-nil and the region is active in Transient
Mark mode, then Dired commands operate only on files in the active
region.  The values 'file' and 'line' of this user option define the
details of marking the file at the end of the region.

*** State changing VC operations are supported in Dired on files and
directories with the help of new command 'dired-vc-next-action'.

+++
*** 'dired-jump' and 'dired-jump-other-window' moved from 'dired-x' to 'dired'.
The 'dired-jump' and 'dired-jump-other-window' commands have been
moved from the 'dired-x' package to 'dired'.  The user option
'dired-bind-jump' no longer has any effect and is now obsolete.
The commands are now bound to 'C-x C-j' and 'C-x 4 C-j' by default.

To get the old behavior of 'dired-bind-jump' back and unbind the above
keys, add the following to your init file:

(global-set-key "\C-x\C-j" nil)
(global-set-key "\C-x4\C-j" nil)

** Change Logs and VC

*** More VC commands can be used from non-file buffers.
The relevant commands are those that don't change the VC state.
The non-file buffers which can use VC commands are those that have
their 'default-directory' under VC.

*** New command 'vc-dir-root' uses the root directory without asking.

---
*** New face 'log-view-commit-body'.
This is used when expanding commit messages from 'vc-print-root-log'
and similar commands.

---
*** New faces for 'vc-dir' buffers.
Those are: 'vc-dir-header', 'vc-dir-header-value', 'vc-dir-directory',
'vc-dir-file', 'vc-dir-mark-indicator', 'vc-dir-status-warning',
'vc-dir-status-edited', 'vc-dir-status-up-to-date',
'vc-dir-status-ignored'.

---
*** The responsible VC backend is now the most specific one.
'vc-responsible-backend' loops over the backends in
'vc-handled-backends' to determine which backend is responsible for a
specific (unregistered) file.  Previously the first matching backend
was chosen, but now the one with the most specific path is chosen (in
case there's a directory handled by one backend inside another).

*** New commands 'vc-dir-mark-registered-files' (bound to '* r') and
'vc-dir-mark-unregistered-files'.

*** Support for bookmark.el.
Bookmark locations can refer to VC directory buffers.

---
*** New user option 'vc-hg-create-bookmark'.
It controls whether a bookmark or branch will be created when you
invoke 'C-u C-x v s' ('vc-create-tag').

---
*** 'vc-hg' now uses 'hg summary' to populate extra 'vc-dir' headers.

---
*** New user option 'vc-git-revision-complete-only-branches'.
If non-nil, only branches and remotes are considered when doing
completion over Git branch names.  The default is nil, which causes
tags to be considered as well.

** Gnus

+++
*** New user option 'gnus-registry-register-all'.
If non-nil (the default), create registry entries for all messages.
If nil, don't automatically create entries, they must be created
manually.

+++
*** New user options to customise the summary line specs "%[" and "%]".
Four new options introduced in customisation group
'gnus-summary-format'.  These are 'gnus-sum-opening-bracket',
'gnus-sum-closing-bracket', 'gnus-sum-opening-bracket-adopted', and
'gnus-sum-closing-bracket-adopted'.  Their default values are "[", "]",
"<", ">" respectively.  These options control the appearance of "%["
and "%]" specs in the summary line format.  "%[" will normally display
the value of 'gnus-sum-opening-bracket', but can also be
'gnus-sum-opening-bracket-adopted' for the adopted articles.  "%]" will
normally display the value of 'gnus-sum-closing-bracket', but can also
be 'gnus-sum-closing-bracket-adopted' for the adopted articles.

+++
*** New user option 'gnus-paging-select-next'.
This controls what happens when using commands like 'SPC' and 'DEL' to
page the current article.  If non-nil (the default), go to the
next/prev article, but if nil, do nothing at the end/start of the article.

+++
*** New gnus-search library.
A new unified search syntax which can be used across multiple
supported search engines.  Set 'gnus-search-use-parsed-queries' to
non-nil to enable.

+++
*** New value for user option 'smiley-style'.
Smileys can now be rendered with emojis instead of small images when
using the new 'emoji' value in 'smiley-style'.

+++
*** New user option 'gnus-agent-eagerly-store-articles'.
If non-nil (which is the default), the Gnus Agent will store all read
articles in the Agent cache.

+++
*** New user option 'gnus-global-groups'.
Gnus handles private groups differently from public (i.e., NNTP-like)
groups.  Most importantly, Gnus doesn't download external images from
mail-like groups.  This can be overridden by putting group names in
'gnus-global-groups': Any group present in that list will be treated
like a public group.

+++
*** New scoring types for the Date header.
You can now score based on the relative age of an article with the new
'<' and '>' date scoring types.

+++
*** User-defined scoring is now possible.
The new type is 'score-fn'.  More information in the Gnus manual node
"(gnus) Score File Format".

+++
*** New backend 'nnselect'.
The newly added 'nnselect' backend allows creating groups from an
arbitrary list of articles that may come from multiple groups and
servers.  These groups generally behave like any other group: they may
be ephemeral or persistent, and allow article marking, moving,
deletion, etc.  'nnselect' groups may be created like any other group,
but there are three convenience functions for the common case of
obtaining the list of articles as a result of a search:
'gnus-group-make-search-group' ('G g') that will prompt for an 'nnir'
search query and create a persistent group for that search;
'gnus-group-read-ephemeral-search-group' ('G G') that will prompt for
an 'nnir' search query and create an ephemeral group for that search;
and 'gnus-summary-make-group-from-search' ('C-c C-p') that will create
a persistent group with the search parameters of a current ephemeral
search group.

As part of this addition, the user option 'nnir-summary-line-format'
has been removed; its functionality is now available directly in the
'gnus-summary-line-format' specs '%G' and '%g'.  The user option
'gnus-refer-thread-use-nnir' has been renamed to
'gnus-refer-thread-use-search'.

+++
*** New user option 'gnus-dbus-close-on-sleep'.
On systems with D-Bus support, it is now possible to register a signal
to close all Gnus servers before the system sleeps.

+++
*** The key binding of 'gnus-summary-search-article-forward' has changed.
This command was previously on 'M-s' and shadowed the global 'M-s'
search prefix.  The command has now been moved to 'M-s M-s'.  (For
consistency, the 'M-s M-r' key binding has been added for the
'gnus-summary-search-article-backward' command.)

---
*** The value of "all" in the 'large-newsgroup-initial' group parameter changes.
It was previously nil, which didn't work, because nil is
indistinguishable from not being present.  The new value for "all" is
the symbol 'all'.

+++
*** The name of dependent Gnus sessions has changed from "slave" to "child".
The names of the commands 'gnus-slave', 'gnus-slave-no-server' and
'gnus-slave-unplugged' have changed to 'gnus-child',
'gnus-child-no-server' and 'gnus-child-unplugged' respectively.

+++
*** The 'W Q' summary mode command now takes a numerical prefix to
allow adjusting the fill width.

+++
*** New variable 'mm-inline-font-lock'.
This variable is supposed to be bound by callers to determine whether
inline MIME parts (that support it) are supposed to be font-locked or
not.

** Message

---
*** Respect 'message-forward-ignored-headers' more.
Previously, this user option would not be consulted if
'message-forward-show-mml' was nil and forwarding as MIME.

+++
*** New user option 'message-forward-included-mime-headers'.
This is used when forwarding messages as MIME, but not using MML.

+++
*** Message now supports the OpenPGP header.
To generate these headers, add the new function
'message-add-openpgp-header' to 'message-send-hook'.  The header will
be generated according to the new 'message-openpgp-header' variable.

---
*** A change to how "Mail-Copies-To: never" is handled.
If a user has specified "Mail-Copies-To: never", and Message was asked
to do a "wide reply", some other arbitrary recipient would end up in
the resulting "To" header, while the remaining recipients would be put
in the "Cc" header.  This is somewhat misleading, as it looks like
you're responding to a specific person in particular.  This has been
changed so that all the recipients are put in the "To" header in these
instances.

+++
*** New command to start Emacs in Message mode to send an email.
Emacs can be defined as a handler for the "x-scheme-handler/mailto"
MIME type with the following command: "emacs -f message-mailto %u".
An "emacs-mail.desktop" file has been included, suitable for
installing in desktop directories like "/usr/share/applications" or
"~/.local/share/applications".
Clicking on a 'mailto:' link in other applications will then open
Emacs with headers filled out according to the link, e.g.
"mailto:larsi@gnus.org?subject=This+is+a+test".  If you prefer
emacsclient, use "emacsclient -e '(message-mailto "%u")'"

---
*** Change to default value of 'message-draft-headers' user option.
The 'Date' symbol has been removed from the default value, meaning that
draft or delayed messages will get a date reflecting when the message
was sent.  To restore the original behavior of dating a message
from when it is first saved or delayed, add the symbol 'Date' back to
this user option.

+++
*** New command to take screenshots.
In Message mode buffers, the 'C-c C-p' ('message-insert-screenshot')
command has been added.  It depends on using an external program to
take the actual screenshot, and defaults to "ImageMagick import".

** Smtpmail

+++
*** Allow direct selection of smtp authentication mechanism.
A server entry retrieved by auth-source can request a desired smtp
authentication mechanism by setting a value for the key 'smtp-auth'.

** Search and Replace

*** New user option 'isearch-wrap-pause' defines how to wrap the search.
There are choices to disable wrapping completely and to wrap immediately.
When wrapping immediately, it consistently handles the numeric arguments
of 'C-s' ('isearch-repeat-forward') and 'C-r' ('isearch-repeat-backward'),
continuing with the remaining count after wrapping.

** Grep

+++
*** New user option 'grep-match-regexp' matches grep markers to highlight.
Grep emits SGR ANSI escape sequences to color its output.  The new
user option 'grep-match-regexp' holds the regular expression to match
the appropriate markers in order to provide highlighting in the source
buffer.  The user option can be customized to accommodate other
grep-like tools.

---
*** The 'lgrep' command now ignores directories.
On systems where the grep command supports it, directories will be
skipped.

** Help

---
*** Keybindings in 'help-mode' use the new 'help-key-binding' face.
This face is added by 'substitute-command-keys' to any "\[command]"
substitution.  The return value of that function should consequently
be assumed to be a propertized string.

Note that the new face will also be used in tooltips.  When using the
GTK toolkit, this is only true if 'x-gtk-use-system-tooltips' is t.

---
*** 'g' ('revert-buffer') in 'help-mode' no longer requires confirmation.

+++
*** New command 'describe-keymap' describes keybindings in a keymap.

---
*** New keybinding 'C-h R' prompts for a manual to display and displays it.

+++
** New command 'lossage-size'.
It allows users to set the maximum number of keystrokes and commands
recorded for the purpose of 'view-lossage'.

---
*** The command 'view-lossage' can now be invoked from the menu bar.
The menu bar "Help" menu now has a "Show Recent Inputs" item under the
"Describe" sub-menu.

** Input methods

+++
*** Emacs now supports "transient" input methods.
A transient input method is enabled for inserting a single character,
and is then automatically disabled.  'C-x \' temporarily enables the
selected transient input method.  Use 'C-u C-x \' to select a
transient input method (which can be different from the input method
enabled by 'C-\').  For example, 'C-u C-x \ compose RET' selects the
'compose' input method; then typing 'C-x \ 1 2' will insert the
character '½', and disable the 'compose' input method afterwards.
You can use 'C-x \' in incremental search to insert a single character
to the search string.

---
*** New input method 'compose' based on X Multi_key sequences.

---
*** New input method 'iso-transl' with the same keys as 'C-x 8'.
After selecting it as a transient input method with 'C-u C-x \
iso-transl RET', it supports the same key sequences as 'C-x 8',
so e.g. like 'C-x 8 [' inserts a left single quotation mark,
'C-x \ [' does the same.

---
*** New user options 'read-char-by-name-sort' and 'read-char-by-name-group'.
'read-char-by-name-sort' defines the sorting order of characters for
completion of 'C-x 8 RET TAB' and can be customized to sort them
by codepoints instead of character names by default.  The 't' value of
'read-char-by-name-group' groups the characters for completion of
'C-x 8 RET TAB' by Unicode blocks.

---
*** Improved language transliteration in Malayalam input methods.
Added a new Mozhi scheme.  The inapplicable ITRANS scheme is now
deprecated.  Errors in the Inscript method were corrected.

---
*** New input method 'cham'.
There's also a Cham greeting in "etc/HELLO".

** Ispell

+++
*** 'ispell-comments-and-strings' now accepts START and END arguments,
defaulting to active region when used interactively.

+++
*** New command 'ispell-comment-or-string-at-point' is provided.

---
** The old non-SMIE indentation of 'sh-mode' has been removed.

---
** The 'list-bookmark' menu is now based on 'tabulated-list-mode'.
The interactive bookmark list will now benefit from features in
'tabulated-list-mode' like sorting columns or changing column width.

Support for the optional "inline" header line, allowing for a header
without using 'header-line-format', has been dropped.  Consequently,
the variables 'bookmark-bmenu-use-header-line' and
'bookmark-bmenu-inline-header-height' are now declared obsolete.

---
** The sb-image.el library is now marked obsolete.
This file was a compatibility kludge which is no longer needed.

---
** Lisp mode now uses 'common-lisp-indent-function'.
To revert to the previous behavior,
'(setq lisp-indent-function 'lisp-indent-function)' from 'lisp-mode-hook'.

** Customize

*** Most customize commands now hide obsolete user options.
Obsolete user options are no longer shown in the listings produced by
the commands 'customize', 'customize-group', 'customize-apropos' and
'customize-changed'.

To customize obsolete user options, use 'customize-option' or
'customize-saved'.

*** New SVG icons for checkboxes and arrows.
They will be used automatically instead of the old icons.  If Emacs is
built without SVG support, the old icons will be used instead.

** Edebug

*** Obsoletions
---
**** 'get-edebug-spec' is obsolete, replaced by 'edebug-get-spec'.
+++
**** The spec operator ':name NAME' is obsolete, use '&name' instead.
+++
**** The spec element 'function-form' is obsolete, use 'form' instead.

+++
*** New function 'def-edebug-elem-spec' to define Edebug spec elements.
These used to be defined with 'def-edebug-spec' thus conflating the
two name spaces, which lead to name collisions.
The use of 'def-edebug-spec' to define Edebug spec elements is
declared obsolete.

*** Edebug specification lists can use some new keywords:

+++
**** '&interpose SPEC FUN ARGS..' lets FUN control parsing after SPEC.
More specifically, FUN is called with 'HEAD PF ARGS..' where
PF is a parsing function that expects a single argument (the specs to
use) and HEAD is the code that matched SPEC.

+++
**** '&error MSG' unconditionally aborts the current edebug instrumentation.

+++
**** '&name SPEC FUN' extracts the current name from the code matching SPEC.

** ElDoc

+++
*** New user option 'eldoc-echo-area-display-truncation-message'.
If non-nil (the default), eldoc will display a message saying
something like "(Documentation truncated.  Use `M-x eldoc-doc-buffer'
to see rest)" when a message has been truncated.  If nil, truncated
messages will be marked with just "..." at the end.

+++
*** New hook 'eldoc-documentation-functions'.
This hook is intended to be used for registering doc string functions.
These functions don't need to produce the doc string right away, they
may arrange for it to be produced asynchronously.  The results of all
doc string functions are accessible to the user through the user
option 'eldoc-documentation-strategy'.

*** New hook 'eldoc-display-functions'.
This hook is intended to be used for displaying doc strings.  The
functions receive the doc string composed according to
'eldoc-documentation-strategy' and are tasked with displaying it to
the user.  Examples of such functions would use the echo area, a
separate buffer, or a tooltip.

+++
*** New user option 'eldoc-documentation-strategy'.
The built-in choices available for this user option let users compose
the results of 'eldoc-documentation-functions' in various ways, even
if some of those functions are synchronous and some asynchronous.
The user option replaces 'eldoc-documentation-function', which is now
obsolete.

*** 'eldoc-echo-area-use-multiline-p' is now handled by ElDoc.
The user option 'eldoc-echo-area-use-multiline-p' is now handled
by the ElDoc library itself.  Functions in
'eldoc-documentation-functions' don't need to worry about consulting
it when producing a doc string.

** Shell

---
*** New command in 'shell-mode': 'narrow-to-prompt'.
This is bound to 'C-x n d' in 'shell-mode' buffers, and narrows to the
command line under point (and any following output).

** Eshell

---
*** 'eshell-hist-ignoredups' can now also be used to mimic "erasedups" in bash.

---
*** Environment variable 'INSIDE_EMACS' is now copied to subprocesses.
Its value equals the result of evaluating '(format "%s,eshell" emacs-version)'.

---
*** Eshell no longer re-initializes its keymap every call.
This allows users to use (define-key eshell-mode-map ...) as usual.
Some modules have their own minor mode now to account for these
changes.

** EUDC

+++
*** New macOS Contacts backend.
This backend works on newer versions of macOS and is generally
preferred over the eudcb-mab.el backend.

** Tramp

+++
*** New connection method "mtp", which allows accessing media devices
like cell phones, tablets or cameras.

+++
*** New connection method "sshfs", which allows accessing remote files
via a file system mounted with 'sshfs'.

+++
*** Trashed remote files are moved to the local trash directory.
All remote files, which are trashed, are moved to the local trash
directory.  Except remote encrypted files, which are always deleted.

+++
*** New command 'tramp-crypt-add-directory'.
This command marks a remote directory to contain only encrypted files.
See the "(tramp) Keeping files encrypted" node of the Tramp manual for
details.  This feature is experimental.

+++
*** Support of direct asynchronous process invocation.
When Tramp connection property "direct-async-process" is set to
non-nil for a given connection, 'make-process' and 'start-file-process'
calls are performed directly as in "ssh ... <command>".  This avoids
initialization performance penalties.  See the "(tramp) Improving
performance of asynchronous remote processes" node of the Tramp manual
for details, and also for a discussion or restrictions.  This feature
is experimental.

+++
*** New user option 'tramp-debug-to-file'.
When non-nil, this user option instructs Tramp to mirror the debug
buffer to a file under the "/tmp/" directory.  This is useful, if (in
rare cases) Tramp blocks Emacs, and we need further debug information.

** Tempo

---
*** 'tempo-define-template' can now re-assign templates to tags.
Previously, assigning a new template to an already defined tag had no
effect.

** map.el

*** Pcase 'map' pattern added keyword symbols abbreviation.
A pattern like '(map :sym)' binds the map's value for ':sym' to 'sym',
equivalent to '(map (:sym sym))'.

---
*** The function 'map-copy' now uses 'copy-alist' on alists.
This is a slightly deeper copy than the previous 'copy-sequence'.

---
*** The function 'map-contains-key' now supports plists.

** Package

+++
*** New command 'package-browse-url' and keystroke 'w'.

+++
*** New commands to filter the package list.
The filter commands are bound to the following keys:

key             binding
---             -------
/ a             package-menu-filter-by-archive
/ d             package-menu-filter-by-description
/ k             package-menu-filter-by-keyword
/ N             package-menu-filter-by-name-or-description
/ n             package-menu-filter-by-name
/ s             package-menu-filter-by-status
/ v             package-menu-filter-by-version
/ m             package-menu-filter-marked
/ u             package-menu-filter-upgradable
/ /             package-menu-filter-clear

---
*** Column widths in 'list-packages' display can now be customized.
See the new user options 'package-name-column-width',
'package-version-column-width', 'package-status-column-width', and
'package-archive-column-width'.

** gdb-mi

+++
*** gdb-mi can now store and restore window configurations.
Use 'gdb-save-window-configuration' to save window configuration to a
file and 'gdb-load-window-configuration' to load from a file.  These
commands can also be accessed through the menu bar under 'Gud --
GDB-Windows'.  'gdb-default-window-configuration-file', when non-nil,
is loaded when GDB starts up.

+++
*** gdb-mi can now restore window configuration after quit.
Set 'gdb-restore-window-configuration-after-quit' to non-nil and Emacs
will remember the window configuration before GDB started and restore
it after GDB quits.  A toggle button is also provided under 'Gud --
GDB-Windows'.

+++
*** gdb-mi now has a better logic for displaying source buffers.
Now GDB only uses one source window to display source file by default.
Customize 'gdb-max-source-window-count' to use more than one window.
Control source file display by 'gdb-display-source-buffer-action'.

+++
*** The default value of 'gdb-mi-decode-strings' is now t.
This means that the default coding-system is now used to decode strings
and source file names from GDB.

** Gravatar

---
*** New user option 'gravatar-service' for host to query for gravatars.
Defaults to 'libravatar', with 'unicornify' and 'gravatar' as options.

** Compilation mode

*** Regexp matching of messages is now case-sensitive by default.
The variable 'compilation-error-case-fold-search' can be set for
case-insensitive matching of messages when the old behavior is
required, but the recommended solution is to use a correctly matching
regexp instead.

---
*** Messages from ShellCheck are now recognized.

---
*** Messages from Visual Studio that mention column numbers are now recognized.

** Hi Lock mode

---
*** Matching in 'hi-lock-mode' is case-sensitive when regexp contains
upper case characters and 'search-upper-case' is non-nil.
'highlight-phrase' also uses 'search-whitespace-regexp'
to substitute spaces in regexp search.

---
*** The default value of 'hi-lock-highlight-range' was enlarged.
The new default value is 2000000 (2 megabytes).

** Whitespace mode

+++
*** New style 'missing-newline-at-eof'.
If present in 'whitespace-style' (as it is by default), the final
character in the buffer will be highlighted if the buffer doesn't end
with a newline.

---
*** The default 'whitespace-enable-predicate' predicate has changed.
It used to check elements in the list version of
'whitespace-global-modes' with 'eq', but now uses 'derived-mode-p'.

** Texinfo

---
*** New user option 'texinfo-texi2dvi-options'.
This is used when invoking 'texi2dvi' from 'texinfo-tex-buffer'.

---
*** New commands for moving in and between environments.
An "environment" is something that ends with '@end'.  The commands are
'C-c C-c C-f' (next end), 'C-c C-c C-b' (previous end),
'C-c C-c C-n' (next start) and 'C-c C-c C-p' (previous start), as well
as 'C-c .', which will alternate between the start and the end of the
current environment.

** Rmail

---
*** New user option 'rmail-re-abbrevs'.
Its default value matches localized abbreviations of the "reply"
prefix on the Subject line in various languages.

---
*** New user option 'shr-offer-extend-specpdl'.
If this is nil, rendering of HTML in the email message body that
requires to enlarge 'max-specpdl-size', the number of Lisp variable
bindings, will be aborted, and Emacs will not ask you whether to
enlarge 'max-specpdl-size' to complete the rendering.  The default is
t, which preserves the original behavior.

---
*** New user option 'rmail-show-message-set-modified'.
If set non-nil, showing an unseen message will set the Rmail buffer's
modified flag.

** Apropos

*** New commands 'apropos-next-symbol' and 'apropos-previous-symbol'.
These new navigation commands are bound to 'n' and 'p' in
'apropos-mode'.

*** New command 'apropos-function'.
This works like 'C-u M-x apropos-command' but is more discoverable.

** CC Mode

*** Added support for Doxygen documentation style.
'doxygen' is now a valid 'c-doc-comment-style' which recognises all
comment styles supported by Doxygen (namely '///', '//!', '/** … */'
and '/*! … */'.  'gtkdoc' remains the default for C and C++ modes; to
use 'doxygen' by default one might evaluate:

    (setq-default c-doc-comment-style
                  '((java-mode . javadoc)
                    (pike-mode . autodoc)
                    (c-mode    . doxygen)
                    (c++-mode  . doxygen)))

or use it in a custom 'c-style'.

*** Added support to line up '?' and ':' of a ternary operator.
The new 'c-lineup-ternary-bodies' function can be used as a lineup
function to align question mark and colon which are part of a ternary
operator ('?:').  For example:

    return arg % 2 == 0 ? arg / 2
                        : (3 * arg + 1);

To enable, add it to appropriate entries in 'c-offsets-alist', e.g.:

    (c-set-offset 'arglist-cont '(c-lineup-ternary-bodies
                                  c-lineup-gcc-asm-reg))
    (c-set-offset 'arglist-cont-nonempty '(c-lineup-ternary-bodies
                                           c-lineup-gcc-asm-reg
                                           c-lineup-arglist))
    (c-set-offset 'statement-cont '(c-lineup-ternary-bodies +))

** browse-url

*** Added support for custom URL handlers.
There is a new variable 'browse-url-default-handlers' and a user
option 'browse-url-handlers' being alists with '(REGEXP-OR-PREDICATE
. FUNCTION)' entries allowing to define different browsing FUNCTIONs
depending on the URL to be browsed.  The variable is for default
handlers provided by Emacs itself or external packages, the user
option is for the user (and allows for overriding the default
handlers).

Formerly, one could do the same by setting
'browse-url-browser-function' to such an alist.  This usage is still
supported but deprecated.

*** Categorization of browsing commands in internal vs. external.
All standard browsing commands such as 'browse-url-firefox',
'browse-url-mail', or 'eww' have been categorized into internal (URL
is browsed in Emacs) or external (an external application is spawned
with the URL).  This is done by adding a 'browse-url-browser-kind'
symbol property to the browsing commands.  With a new command
'browse-url-with-browser-kind', an URL can explicitly be browsed with
either an internal or external browser.

*** Support for the conkeror browser is now obsolete.

*** Support for the Mosaic browser has been removed.
This support has been obsolete since 25.1.

** SHR

---
*** The command 'shr-browse-url' now supports custom mailto handlers.
Clicking on or otherwise following a 'mailto:' link in a HTML buffer
rendered by SHR previously invoked the command 'browse-url-mailto'.
This is still the case by default, but if you customize
'browse-url-mailto-function' or 'browse-url-handlers' to call some
other function, it will now be called instead of the default.

+++
*** New user option 'shr-max-width'.
If this user option is non-nil, and 'shr-width' is nil, then SHR will
use the value of 'shr-max-width' to limit the width of the rendered
HTML.  The default is 120 characters, so even if you have very wide
frames, HTML text will be rendered more narrowly, which usually leads
to a more readable text.  Set this user option to nil to get the
previous behavior of rendering as wide as the 'window-width' allows.
If 'shr-width' is non-nil, it overrides this variable.

** Images

---
*** You can explicitly specify base_uri for svg images.
':base-uri' image property can be used to explicitly specify base_uri
for embedded images into svg.  ':base-uri' is supported for both file
and data svg images.

+++
*** 'svg-embed-base-uri-image' added to embed images.
'svg-embed-base-uri-image' can be used to embed images located
relatively to 'file-name-directory' of the ':base-uri' svg image property.
This works much faster then 'svg-embed'.

+++
*** New function 'image-cache-size'.
This function returns the size of the current image cache, in bytes.

---
*** Animated images stop automatically under high CPU pressure sooner.
Previously, an animated image would stop animating if any single image
took more than two seconds to display.  The new algorithm maintains a
decaying average of delays, and if this number gets too high, the
animation is stopped.

+++
*** The 'n' and 'p' commands (next/previous image) now respect Dired order.
These commands would previously display the next/previous image in
lexicographic order, but will now find the "parent" Dired buffer and
select the next/previous image file according to how the files are
sorted there.  The commands have also been extended to work when the
"parent" buffer is an archive mode (i.e., zip file or the like) or tar
mode buffer.

---
*** 'image-converter' is now restricted to formats in 'auto-mode-alist'.
When using external image converters, the external program is queried
for what formats it supports.  This list may contain formats that are
problematic in some contexts (like PDFs), so this list is now filtered
based on 'auto-mode-alist'.  Only file names that map to 'image-mode'
are now supported.

---
*** The background and foreground of images now default to face colors.
When an image doesn't specify a foreground or background color, Emacs
now uses colors from the face used to draw the surrounding text
instead of the frame's default colors.

To load images with the default frame colors use the ':foreground' and
':background' image attributes, for example:

    (create-image "filename" nil nil
                  :foreground (face-attribute 'default :foreground)
                  :background (face-attribute 'default :background))

This change only affects image types that support foreground and
background colors or transparency, such as xbm, pbm, svg, png and gif.

+++
*** Image smoothing can now be explicitly enabled or disabled.
Smoothing applies a bilinear filter while scaling or rotating an image
to prevent aliasing and other unwanted effects.  The new image
property ':transform-smoothing' can be set to t to force smoothing
and nil to disable smoothing.

The default behaviour of smoothing on down-scaling and not smoothing
on up-scaling remains unchanged.

+++
*** New user option 'image-transform-smoothing'.
This controls whether to use smoothing or not for an image.  Values
include nil (no smoothing), t (do smoothing) or a predicate function
that's called with the image object and should return nil/t.

+++
*** SVG images now support user stylesheets.
The ':css' image attribute can be used to override the default CSS
stylesheet for an image.  The default sets 'font-family' and
'font-size' to match the current face, so an image with 'height="1em"'
will match the font size in use where it is embedded.

This feature relies on librsvg 2.48 or above being available.

** EWW

+++
*** New user option 'eww-use-browse-url'.
This is a regexp that can be set to alter how links are followed in eww.

+++
*** New user option 'eww-retrieve-command'.
This can be used to download data via an external command.  If nil
(the default), then 'url-retrieve' is used.

+++
*** New Emacs command line convenience command.
The 'eww-browse' command has been added, which allows you to register
Emacs as a MIME handler for "text/x-uri", and will call 'eww' on the
supplied URL.  Usage example: "emacs -f eww-browse https://gnu.org".

+++
*** 'eww-download-directory' will now use the XDG location, if defined.
However, if "~/Downloads/" already exists, that will continue to be
used.

---
*** The command 'eww-follow-link' now supports custom mailto handlers.
The function that is invoked when clicking on or otherwise following a
'mailto:' link in an EWW buffer can now be customized.  For more
information, see the related entry about 'shr-browse-url' above.

** Project

*** New user option 'project-vc-merge-submodules'.

*** Project commands now have their own history.
Previously used project directories are now suggested by all commands
that prompt for a project directory.

+++
*** New prefix keymap 'project-prefix-map'.
Key sequences that invoke project-related commands start with the
prefix 'C-x p'.  Type "C-x p C-h" to show the full list.

+++
*** New commands 'project-dired', 'project-vc-dir', 'project-shell',
'project-eshell'.  These commands run Dired/VC-Dir and Shell/Eshell in
a project's root directory, respectively.

+++
*** New command 'project-compile'.
This command runs compilation in the current project's root
directory.

+++
*** New command 'project-switch-project'.
This command lets you "switch" to another project and run a project
command chosen from a dispatch menu.

+++
*** New commands 'project-shell-command' and 'project-async-shell-command'.
These commands run 'shell-command' and 'async-shell-command' in a
project's root directory, respectively.

+++
*** New user option 'project-list-file'.

+++
*** New command 'project-remove-known-project'.
This command lets you interactively remove an entry from the list of projects
in 'project-list-file'.

** xref

---
*** Prefix arg of 'xref-goto-xref' quits the "*xref*" buffer.
So typing 'C-u RET' in the "*xref*" buffer quits its window
before navigating to the selected location.

*** New user options 'xref-search-program' and 'xref-search-program-alist'.
So far 'grep' and 'ripgrep' are supported.  'ripgrep' seems to offer better
performance in certain cases, in particular for case-insensitive
searches.

+++
*** New commands 'xref-prev-group' and 'xref-next-group'.
These commands are bound respectively to 'P' and 'N', and navigate to
the first item of the previous or next group in the "*xref*" buffer.

*** New alternative value for 'xref-show-definitions-function':
'xref-show-definitions-completing-read'.

*** The two existing alternatives for 'xref-show-definitions-function'
have been renamed to have "proper" public names and documented
('xref-show-definitions-buffer' and
'xref-show-definitions-buffer-at-bottom').

*** New command 'xref-quit-and-pop-marker-stack' and a binding for it
in "*xref*" buffers ('M-,').  This combination is easy to press
semi-accidentally if the user wants to go back in the middle of
choosing the exact definition to go to, and this should do TRT.

---
*** New value 'project-relative' for 'xref-file-name-display'.
If chosen, file names in "*xref*" buffers will be displayed relative
to the 'project-root' of the current project, when available.

** json.el

---
*** JSON number parsing is now stricter.
Numbers with a leading plus sign, leading zeros, or a missing integer
component are now rejected by 'json-read' and friends.  This makes
them more compliant with the JSON specification and consistent with
the native JSON parsing functions.

---
*** Some JSON encoding functions are now obsolete.
The functions 'json-encode-number', 'json-encode-hash-table',
'json-encode-key', and 'json-encode-list' are now obsolete.

The first two are kept as aliases of 'json-encode', which should be
used instead.  Uses of 'json-encode-list' should be changed to call
one of 'json-encode', 'json-encode-alist', 'json-encode-plist', or
'json-encode-array' instead.

** xml.el

*** XML serialization functions now reject invalid characters.
Previously 'xml-print' would produce invalid XML when given a string
with characters that are not valid in XML (see
https://www.w3.org/TR/xml/#charsets).  Now it rejects such strings.

** erc

---
*** erc-services.el now supports NickServ passwords from auth-source.
The 'erc-use-auth-source-for-nickserv-password' user option enables
querying auth-source for NickServ passwords.  To enable this, add the
following to your init file:

    (setq erc-prompt-for-nickserv-password nil
          erc-use-auth-source-for-nickserv-password t)

---
*** The '/ignore' command will now ask for a timeout to stop ignoring the user.
Allowed inputs are seconds or ISO8601-like periods like "1h" or "4h30m".

---
*** ERC now recognizes 'C-]' for italic text.
Italic text is displayed in the new 'erc-italic-face'.

---
*** The erc-compat.el library is now marked obsolete.
This file contained ERC compatibility code for Emacs 21 and XEmacs
which is no longer needed.

---
*** erc-match.el now supports 'message' highlight type (not including the nick).
The 'erc-current-nick-highlight-type', 'erc-pal-highlight-type',
'erc-fool-highlight-type', 'erc-keyword-highlight-type', and
'erc-dangerous-host-highlight-type' variables now support a 'message'
type for highlighting the entire message but not the sender's nick.

*** erc-status-sidebar.el is now part of ERC.
The 'erc-status-sidebar' package which provides a HexChat-like
activity overview sidebar for joined IRC channels is now part of ERC.

** Battery

---
*** UPower is now the default battery status backend when available.
UPower support via the function 'battery-upower' was added in Emacs
26.1, but was disabled by default.  It is now the default value of
'battery-status-function' when the system provides a UPower D-Bus
service.  The user options 'battery-upower-device' and
'battery-upower-subscribe' control which power sources to query and
whether to respond to status change notifications in addition to
polling, respectively.

---
*** A richer syntax can be used to format battery status information.
The user options 'battery-mode-line-format' and
'battery-echo-area-format' now support the full formatting syntax of
the function 'format-spec' documented under node "(elisp) Custom Format
Strings".  The new syntax includes specifiers for padding and
truncation, amongst other things.

** bug-reference.el

---
*** Bug reference mode auto-setup.  If 'bug-reference-mode' or
'bug-reference-prog-mode' have been activated, their respective hook
has been run and still 'bug-reference-bug-regexp' and
'bug-reference-url-format' aren't both set, it tries to guess
appropriate values for those two variables.  There are three guessing
mechanisms so far: based on version control information of the current
buffer's file, based on newsgroup/mail-folder name and several news
and mail message headers in Gnus buffers, and based on IRC channel and
network in rcirc and ERC buffers.  All mechanisms are extensible with
custom rules, see the variables 'bug-reference-setup-from-vc-alist',
'bug-reference-setup-from-mail-alist', and
'bug-reference-setup-from-irc-alist'.

** HTML Mode

---
*** A new skeleton for adding relative URLs has been added.
It's bound to the 'C-c C-c f' keystroke, and prompts for a local file
name.

** Recentf

---
*** The recentf files are no longer backed up.

---
*** 'recentf-auto-cleanup' time string now repeats.
When 'recentf-auto-cleanup' is set to a time string, it now repeats
every day, rather than only running once after the mode is turned on.

** Calc

---
*** The behavior when doing forward-delete has been changed.
Previously, using the 'C-d' command would delete the final number in
the input field, no matter where point was.  This has been changed to
work more traditionally, with 'C-d' deleting the next character.
Likewise, point isn't moved to the end of the string before inserting
digits.

+++
*** Setting the word size to zero disables word clipping.
The word size normally clips the results of certain bit-oriented
operations such as shifts and bitwise XOR.  A word size of zero, set
by 'b w', makes the operation have effect on the whole argument values
and the result is not truncated in any way.

---
*** The '/' operator now has higher precedence in (La)TeX input mode.
It no longer has lower precedence than '+' and '-'.

---
*** Calc now marks its windows dedicated.
The new user option 'calc-make-windows-dedicated' controls this.  It
is t by default; set to nil to get back the old behavior.

** term-mode

---
*** New user option 'term-scroll-snap-to-bottom'.
By default, 'term' and 'ansi-term' will now recenter the buffer so
that the prompt is on the final line in the window.  Setting this new
user option to nil inhibits this behavior.

---
*** New user option 'term-set-terminal-size'
If non-nil, the 'LINES' and 'COLUMNS' environment variables will be set
based on the current window size.  In previous versions of Emacs, this
was always done (and that could lead to odd displays when resizing the
window after starting).  This variable defaults to nil.

** Widget

+++
*** 'widget-choose' now supports menus in extended format.

---
*** The 'editable-list' widget now supports moving items up and down.
You can now move items up and down by deleting and then reinserting
them, using the 'DEL' and 'INS' buttons respectively.  This is useful
in Custom buffers, for example, to change the order of the elements in
a list.

** Diff

---
*** New 'diff-mode' font locking face 'diff-error'.
This face is used for error messages from 'diff'.

+++
*** New command 'diff-refresh-hunk'.
This new command (bound to 'C-c C-l') regenerates the current hunk.

** Buttons

+++
*** New minor mode 'button-mode'.
This minor mode does nothing else than install 'button-buffer-map' as
a minor mode map (which binds the 'TAB' / 'S-TAB' key bindings to navigate
to buttons), and can be used in any view-mode-like buffer that has
buttons in it.

+++
*** New utility function 'button-buttonize'.
This function takes a string and returns a string propertized in a way
that makes it a valid button.

** subr-x
+++
*** A number of new string manipulation functions have been added.
'string-clean-whitespace', 'string-fill', 'string-limit',
'string-lines', 'string-pad' and 'string-chop-newline'.

*** New macro 'named-let' that provides Scheme's "named let" looping construct.

** thingatpt

+++
*** New variable 'thing-at-point-provider-alist'.
This allows mode-specific alterations to how 'thing-at-point' works.

** Enriched mode

---
*** 'C-a' is by default no longer bound to 'beginning-of-line-text'.
This is so 'C-a' works as in other modes, and in particular holding
Shift while typing 'C-a', i.e. 'C-S-a', will now highlight the text.

** Miscellaneous

+++
*** New command 'C-x C-k Q' to force redisplay in keyboard macros.

---
*** New user option 'remember-diary-regexp'.

---
*** New user option 'remember-text-format-function'.

*** New function 'buffer-line-statistics'.
This function returns some statistics about the line lengths in a buffer.

+++
*** New variable 'inhibit-interaction' to make user prompts signal an error.
If this is bound to something non-nil, functions like
'read-from-minibuffer', 'read-char' (and related) will signal an
'inhibited-interaction' error.

---
*** 'process-attributes' now works under OpenBSD, too.

+++
*** New button face 'flat-button'.
This is a plain 2D button, but uses the background color instead of
the foreground color.

---
*** New face 'shortdoc-heading'.
Applies to headings of shortdoc sections.

+++
*** New predicate functions 'length<', 'length>' and 'length='.
Using these functions may be more efficient than using 'length' (if
the length of a (long) list is being computed just to compare this
length to a number).

---
*** 'remove-hook' is now an interactive command.

---
*** New user option 'authinfo-hide-elements'.
This can be set to nil to inhibit hiding passwords in ".authinfo" files.

+++
*** New variable 'current-minibuffer-command'.
This is like 'this-command', but it is bound recursively when entering
the minibuffer.

+++
*** New function 'object-intervals'.
This function returns a copy of the list of intervals (i.e., text
properties) in the object in question (which must either be a string
or a buffer).

---
*** 'hexl-mode' scrolling commands now heed 'next-screen-context-lines'.
Previously, 'hexl-scroll-down' and 'hexl-scroll-up' would scroll
up/down an entire window, but they now work more like the standard
scrolling commands.

---
*** Errors in 'kill-emacs-hook' no longer prevent Emacs from shutting down.
If a function in that hook signals an error in an interactive Emacs,
the user will be prompted on whether to continue.  If the user doesn't
answer within five seconds, Emacs will continue shutting down anyway.

---
*** iso-transl is now preloaded.
This means that keystrokes like 'Alt-[' are defined by default,
instead of only becoming available after doing (for instance)
'C-x 8 <letter>'.

*** New user option 'completions-detailed'.
When non-nil, some commands like 'describe-symbol' show more detailed
completions with more information in completion prefix and suffix.

---
*** User option 'completions-format' supports a new value 'one-column'.

---
*** New user option 'bibtex-unify-case-function'.
This new option allows the user to customize how case is converted
when unifying entries.

---
*** The user option 'bibtex-maintain-sorted-entries' now permits
user-defined sorting schemes.

+++
*** 'format-seconds' can now be used for sub-second times.
The new optional "," parameter has been added, and
'(format-seconds "%mm %,1ss" 66.4)' will now result in "1m 6.4s".

---
*** 'global-display-fill-column-indicator-mode' skips some buffers.
By default, turning on 'global-display-fill-column-indicator-mode'
doesn't turn on 'display-fill-column-indicator-mode' in special-mode
buffers.  This can be controlled by customizing the variable
'global-display-fill-column-indicator-modes'.

---
*** New user option 'compilation-search-all-directories'.
When doing parallel builds, directories and compilation errors may
arrive in the "*compilation*" buffer out-of-order.  If this variable is
non-nil (the default), Emacs will now search backwards in the buffer
for any directory the file with errors may be in.  If nil, this won't
be done (and this restores how this previously worked).

+++
*** New user option 'next-error-message-highlight'.
In addition to a fringe arrow, 'next-error' error may now optionally
highlight the current error message in the 'next-error' buffer.
This user option can be also customized to keep highlighting on all
visited errors, so you can have an overview what errors were already visited.

---
*** New choice 'next-error-quit-window' for 'next-error-found-function'.
When 'next-error-found-function' is customized to 'next-error-quit-window',
then typing the numeric prefix argument 0 before the command 'next-error'
will quit the source window after visiting the next occurrence.

+++
*** New user option 'tab-first-completion'.
If 'tab-always-indent' is 'complete', this new user option can be used to
further tweak whether to complete or indent.

---
*** 'dired-query' now uses 'read-char-from-minibuffer'.
Using it instead of 'read-char-choice' allows using 'C-x o'
to switch to the help window displayed after typing 'C-h'.

---
*** 'zap-up-to-char' now uses 'read-char-from-minibuffer'.
This allows navigating through the history of characters that have
been input.  This is mostly useful for characters that have complex
input methods where inputting the character again may involve many
keystrokes.

+++
*** Interactive regular expression search now uses faces for sub-groups.
E.g., 'C-M-s foo-\([0-9]+\)' will now use the 'isearch-group-1' face
on the part of the regexp that matches the sub-expression "[0-9]+".
By default, there are two faces for sub-group highlighting, but you
can define more faces whose names are of the form 'isearch-group-N',
where N are successive numbers above 2.

This is controlled by the 'search-highlight-submatches' user option.
This feature is available only on terminals that have enough colors to
distinguish between sub-expression highlighting.

+++
*** Interactive regular expression replace now uses faces for sub-groups.
Like 'search-highlight-submatches', this is controlled by the new user option
'query-replace-highlight-submatches'.

---
*** New user option 'reveal-auto-hide'.
If non-nil (the default), revealed text is automatically hidden when
point leaves the text.  If nil, the text is not hidden again.  Instead
'M-x reveal-hide-revealed' can be used to hide all the revealed text.

+++
*** New user options to control the look of line/column numbers in the mode line.
'mode-line-position-line-format' is the line number format (when
'line-number-mode' is on), 'mode-line-position-column-format' is
the column number format (when 'column-number-mode' is on), and
'mode-line-position-column-line-format' is the combined format (when
both modes are on).

+++
*** New user option 'mode-line-compact'.
If non-nil, repeating spaces are compressed into a single space.  If
'long', this is only done when the mode line is longer than the
current window width (in characters).

+++
*** New command 'submit-emacs-patch'.
This works like 'report-emacs-bug', but is more geared towards sending
patches to the Emacs issue tracker.

+++
*** The user can now customize how "default" values are prompted for.
The new utility function 'format-prompt' has been added which uses the
new 'minibuffer-default-prompt-format' user option to format "default"
prompts.  This means that prompts that look like "Enter a number
(default 10)" can be customized to look like, for instance, "Enter a
number [10]", or not have the default displayed at all, like "Enter a
number".  (This requires that all callers are altered to use
'format-prompt', though.)

+++
*** New global mode 'global-goto-address-mode'.
This will enable 'goto-address-mode' in all buffers.

---
*** 'C-s' in 'M-x' now searches over completions again.
In Emacs 23, typing 'M-x' ('read-extended-command') and then 'C-s' (to
do an interactive search) would search over possible completions.
This was lost in Emacs 24, but is now back again.

---
*** 'M-x report-emacs-bug' will no longer include "Recent messages" section.
These were taken from the "*Messages*" buffer, and may inadvertently
leak information from the reporting user.

---
*** 'count-windows' now takes an optional parameter ALL-FRAMES.
The semantics are as with 'walk-windows'.

---
*** Killing virtual ido buffers interactively will make them go away.
Previously, killing a virtual ido buffer with 'ido-kill-buffer' didn't
do anything.  This has now been changed, and killing virtual buffers
with that command will remove the buffer from recentf.

---
*** New variable 'ffap-file-name-with-spaces'.
If non-nil, 'find-file-at-point' and friends will try to guess more
expansively to identify a file name with spaces.

---
*** Two new commands for centering in 'doc-view-mode'.
The new commands 'doc-view-center-page-horizontally' (bound to 'c h')
and 'doc-view-center-page-vertically' (bound to 'c v') center the page
horizontally and vertically, respectively.

---
*** Change in meaning of 'icomplete-show-matches-on-no-input'.
Previously, choosing a different completion with commands like 'C-.'
and then hitting 'RET' would choose the default completion.  Doing this
will now choose the completion under point instead.  Also when this option
is nil, completions are not shown when the minibuffer reads a file name
with initial input as the default directory.

---
*** The width of the buffer-name column in 'list-buffers' is now dynamic.
The width now depends of the width of the window, but will never be
wider than the length of the longest buffer name, except that it will
never be narrower than 19 characters.

*** Bookmarks can now be targets for new tabs.
When the bookmark.el library is loaded, a customize choice is added
to 'tab-bar-new-tab-choice' for new tabs to show the bookmark list.

---
*** Movement commands in 'gomoku-mode' are fixed.
'gomoku-move-sw' and 'gomoku-move-ne' now work correctly, and
horizontal movements now stop at the edge of the board.

** xterm-mouse mode

---
*** TTY menu navigation is now supported in 'xterm-mouse-mode'.
TTY menus support mouse navigation and selection when 'xterm-mouse-mode'
is active.  When run on a terminal, clicking on the menu bar with the
mouse now pops up a TTY menu by default instead of running the command
'tmm-menubar'.  To restore the old behavior, set the user option
'tty-menu-open-use-tmm' to non-nil.

** text-scale-mode

---
*** 'text-scale-mode' can now adjust font size of the header line.
When the new buffer local variable 'text-scale-remap-header-line'
is non-nil, 'text-scale-adjust' will also scale the text in the header
line when displaying that buffer.

This is useful for major modes that arrange their display in a tabular
form below the header line.  It is enabled by default in
'tabulated-list-mode' and its derived modes.

** xwidget-webkit mode

*** New xwidget commands.
'xwidget-webkit-uri' (return the current URL), 'xwidget-webkit-title'
(return the current title), and 'xwidget-webkit-goto-history' (goto a
point in history).

*** Pixel-based scrolling.
The 'xwidget-webkit-scroll-up', 'xwidget-webkit-scroll-down' commands
now supports scrolling arbitrary pixel values.  It now treats the
optional 2nd argument as the pixel values to scroll.

*** New commands for scrolling.
The new commands 'xwidget-webkit-scroll-up-line',
'xwidget-webkit-scroll-down-line', 'xwidget-webkit-scroll-forward',
'xwidget-webkit-scroll-backward' can be used to scroll webkit by the
height of lines or width of chars.

*** New user option 'xwidget-webkit-bookmark-jump-new-session'.
When non-nil, use a new xwidget webkit session after bookmark jump.
Otherwise, it will use 'xwidget-webkit-last-session'.

** Flymake mode

+++
*** New user options to customize Flymake's mode-line.
The new user option 'flymake-mode-line-format' is a mix of strings and
symbols like 'flymake-mode-line-title', 'flymake-mode-line-exception'
and 'flymake-mode-line-counters'.  The new user option
'flymake-mode-line-counter-format' is a mix of strings and symbols
like 'flymake-mode-line-error-counter',
'flymake-mode-line-warning-counter' and 'flymake-mode-line-note-counter'.

** Flyspell mode

+++
*** Corrections and actions menu can be optionally bound to 'mouse-3'.
When Flyspell mode highlights a word as misspelled, you can click on
it to display a menu of possible corrections and actions.  You can now
easily bind this menu to 'down-mouse-3' (usually the right mouse button)
instead of 'mouse-2' (the default) by customizing the new user option
'flyspell-use-mouse-3-for-menu'.

---
*** The current dictionary is now displayed in the minor mode lighter.
Clicking the dictionary name changes the current dictionary.

** Time

---
*** 'display-time-world' has been renamed to 'world-clock'.
'world-clock' creates a buffer with an updating time display using
several time zones.  It is hoped that the new names are more
discoverable.

The following commands have been renamed:

  'display-time-world'         to 'world-clock'
  'display-time-world-mode'    to 'world-clock-mode'
  'display-time-world-display' to 'world-clock-display'
  'display-time-world-timer'   to 'world-clock-update'

The following user options have been renamed:

  'display-time-world-list'         to 'world-clock-list'
  'display-time-world-time-format'  to 'world-clock-time-format'
  'display-time-world-buffer-name'  to 'world-clock-buffer-name'
  'display-time-world-timer-enable' to 'world-clock-timer-enable'
  'display-time-world-timer-second' to 'world-clock-timer-second'

The old names are now obsolete.

** D-Bus

+++
*** Property values can be typed explicitly.
'dbus-register-property' and 'dbus-set-property' accept now optional
type symbols.  Both functions propagate D-Bus errors.

+++
*** Registered properties can have the new access type ':write'.

+++
*** In case of problems, handlers can emit proper D-Bus error messages now.

+++
*** D-Bus errors, which have been converted from incoming D-Bus error
messages, contain the error name of that message now.

+++
*** D-Bus messages can be monitored with the new command 'dbus-monitor'.

+++
*** D-Bus events have changed their internal structure.
They carry now the destination and the error-name of an event.  They
also keep the type information of their arguments.  Use the
'dbus-event-*' accessor functions.

** CPerl Mode

---
*** New face 'perl-heredoc', used for heredoc elements.

---
*** The command 'cperl-set-style' offers the new value "PBP".
This value customizes Emacs to use the style recommended in Damian
Conway's book "Perl Best Practices" for indentation and formatting
of conditionals.

** Abbrev mode

+++
*** Emacs can now suggest to use an abbrev based on text you type.
A new user option, 'abbrev-suggest', enables the new abbrev suggestion
feature.  When enabled, if a user manually types a piece of text that
could have saved enough typing by using an abbrev, a hint will be
displayed in the echo area, mentioning the abbrev that could have been
used instead.

** Octave Mode

+++
*** Line continuations in double-quoted strings now use a backslash.
Typing 'C-M-j' (bound to 'octave-indent-new-comment-line') now follows
the behavior introduced in Octave 3.8 of using a backslash as a line
continuation marker within double-quoted strings, and an ellipsis
everywhere else.

** Repeat

+++
*** New transient mode 'repeat-mode' to allow shorter key sequences.
You can type 'C-x u u' instead of 'C-x u C-x u' to undo many changes,
'C-x o o' instead of 'C-x o C-x o' to switch several windows,
'C-x { { } } ^ ^ v v' to resize the selected window interactively,
'M-g n n p p' to navigate next-error matches.  Any other key exits
transient mode and then is executed normally.  'repeat-exit-key'
defines an additional key to exit mode like 'isearch-exit' ('RET').
With 'repeat-keep-prefix' you can keep the prefix arg of the previous command.
For example, this can help to reverse the window navigation direction
with e.g. 'C-x o M-- o o'.  Also it can help to set a new step with
e.g. 'C-x { C-5 { { {' will set the window resizing step to 5 columns.

\f
* New Modes and Packages in Emacs 28.1

** Lisp Data mode
The new command 'lisp-data-mode' enables a major mode for buffers
composed of Lisp symbolic expressions that do not form a computer
program.  The ".dir-locals.el" file is automatically set to use this
mode, as are other data files produced by Emacs.

** hierarchy.el
It's a library to create, query, navigate and display hierarchy structures.

** New themes 'modus-vivendi' and 'modus-operandi'.
These themes are designed to conform with the highest standard for
color-contrast accessibility (WCAG AAA).  You can load either of them
using 'M-x customize-themes' or 'load-theme' from your init file.
Consult the Modus Themes Info manual for more information on the user
options they provide.

** Dictionary mode
This is a mode for searching a RFC 2229 dictionary server.
'dictionary' opens a buffer for starting operations.
'dictionary-search' performs a lookup for a word.  It also supports a
'dictionary-tooltip-mode' which performs a lookup of the word under
the mouse in 'dictionary-tooltip-dictionary' (which must be customized
first).

\f
* Incompatible Editing Changes in Emacs 28.1

** The 'M-o' ('facemenu-keymap') global binding has been removed.
To restore the old binding, say something like:

    (require 'facemenu)
    (define-key global-map "\M-o" 'facemenu-keymap)
    (define-key facemenu-keymap "\es" 'center-line)
    (define-key facemenu-keymap "\eS" 'center-paragraph)

The last two lines are not strictly necessary if you don't care about
having those two commands on the 'M-o' keymap; see the next section.

** The 'M-o M-s' and 'M-o M-S' global bindings have been removed.
Use 'M-x center-line' and 'M-x center-paragraph' instead.  See the
previous section for how to get back the old bindings.  Alternatively,
if you only want these two commands to have global bindings they had
before, you can add the following to your init file:

  (define-key global-map "\M-o\M-s" 'center-line)
  (define-key global-map "\M-o\M-S" 'center-paragraph)

** The 'M-o M-o' global binding has been removed.
Use 'M-x font-lock-fontify-block' instead, or the new 'C-x x f'
command, which updates the syntax highlighting in the current buffer.

** In 'f90-mode', the backslash character ('\') no longer escapes.
For about a decade, the backslash character has no longer had a
special escape syntax in Fortran F90.  To get the old behaviour back,
say something like:

    (modify-syntax-entry ?\\ "\\" f90-mode-syntax-table)

** In 'nroff-mode', 'center-line' is now bound to 'M-o M-s'.
The original key binding was 'M-s', which interfered with I-search,
since the latter uses 'M-s' as a prefix key of the search prefix map.

** 'vc-print-branch-log' shows the change log for BRANCH from its root
directory instead of the default directory.

---
** 'project-shell' and 'shell' now use 'pop-to-buffer-same-window'.
This is to keep the same behavior as Eshell.

\f
* Incompatible Lisp Changes in Emacs 28.1

** 'facemenu-color-alist' is now obsolete, and is not used.

** 'facemenu.el' is no longer preloaded.
To use functions/variables from the package, you now have to say
'(require 'facemenu)' or similar.

** 'pcomplete-ignore-case' is now an obsolete alias of 'completion-ignore-case'.

** 'completions-annotations' face is not used when the caller puts own face.
This affects the suffix specified by completion 'annotation-function'.

** 'set-process-buffer' now updates the process mark.
The mark will be set to point to the end of the new buffer.

+++
** Some properties from completion tables are now preserved.
If 'minibuffer-allow-text-properties' is non-nil, doing completion
over a table of strings with properties will no longer remove all the
properties before returning.  This affects things like 'completing-read'.

** 'equal' no longer examines some contents of window configurations.
Instead, it considers window configurations to be equal only if they
are 'eq'.  To compare contents, use 'compare-window-configurations'
instead.  This change helps fix a bug in 'sxhash-equal', which returned
incorrect hashes for window configurations and some other objects.

** When its first argument is a string, 'make-text-button' no longer
modifies the string's text properties; instead, it uses and returns
a copy of the string.  This helps avoid trouble when strings are
shared or constants.

+++
** Temporary buffers no longer run certain buffer hooks.
The macros 'with-temp-buffer' and 'with-temp-file' no longer run the
hooks 'kill-buffer-hook', 'kill-buffer-query-functions', and
'buffer-list-update-hook' for the temporary buffers they create.  This
avoids slowing them down when a lot of these hooks are defined.

** New face 'child-frame-border' and frame parameter 'child-frame-border-width'.
The face and width of child frames borders can now be determined
separately from those of normal frames.  To minimize backward
incompatibility, child frames without a 'child-frame-border-width'
parameter will fall back to using 'internal-border-width'.  However,
the new 'child-frame-border' face does constitute a breaking change
since child frames' borders no longer use the 'internal-border' face.

---
** The obsolete function 'thread-alive-p' has been removed.

** 'dns-query' now consistently uses Lisp integers to represent integers.
Formerly it made an exception for integer components of SOA records,
because SOA serial numbers can exceed fixnum ranges on 32-bit platforms.
Emacs now supports bignums so this old glitch is no longer needed.

---
** The new function 'dns-query-asynchronous' has been added.
It takes the same parameters as 'dns-query', but adds a callback
parameter.

** The Lisp variables 'previous-system-messages-locale' and
'previous-system-time-locale' have been removed, as they were created
by mistake and were not useful to Lisp code.

---
** Loading 'generic-x' unconditionally loads all modes.
The user option 'generic-extras-enable-list' is now obsolete, and
setting it has no effect.

---
** The 'load-dangerous-libraries' variable is now obsolete.
It was used to allow loading Lisp libraries compiled by XEmacs, a
modified version of Emacs which is no longer actively maintained.
This is no longer supported, and setting this variable has no effect.

+++
** The macro 'with-displayed-buffer-window' is now obsolete.
Use macro 'with-current-buffer-window' with action alist entry 'body-function'.

---
** The inversion.el library is now obsolete.

---
** The metamail.el library is now obsolete.

---
** Some obsolete variable and function aliases in dbus.el have been removed.
In Emacs 24.3, the variable 'dbus-event-error-hooks' was renamed to
'dbus-event-error-functions' and the function
'dbus-call-method-non-blocking' was renamed to 'dbus-call-method'.
The old names, which were kept as obsolete aliases of the new names,
have now been removed.

---
** Some libraries obsolete since Emacs 23 have been removed:
ledit.el, lmenu.el, lucid.el and old-whitespace.el.

---
** Some functions and variables obsolete since Emacs 23 have been removed:
'GOLD-map', 'advertised-xscheme-send-previous-expression',
'allout-init', 'bookmark-jump-noselect',
'bookmark-read-annotation-text-func', 'buffer-menu-mode-hook',
'c-forward-into-nomenclature', 'char-coding-system-table',
'char-valid-p', 'charset-bytes', 'charset-id', 'charset-list',
'choose-completion-delete-max-match', 'complete-in-turn',
'completion-base-size', 'completion-common-substring',
'crm-minibuffer-complete', 'crm-minibuffer-complete-and-exit',
'crm-minibuffer-completion-help', 'custom-mode', 'custom-mode-hook',
'define-key-rebound-commands', 'define-mode-overload-implementation',
'detect-coding-with-priority', 'dirtrack-debug',
'dirtrack-debug-toggle', 'dynamic-completion-table',
'easy-menu-precalculate-equivalent-keybindings',
'epa-display-verify-result', 'epg-passphrase-callback-function',
'erc-announced-server-name', 'erc-default-coding-system',
'erc-process', 'erc-send-command', 'eshell-report-bug',
'eval-next-after-load', 'exchange-dot-and-mark', 'ffap-bug',
'ffap-submit-bug', 'ffap-version', 'file-cache-choose-completion',
'forward-point', 'generic-char-p', 'global-highlight-changes',
'hi-lock-face-history', 'hi-lock-regexp-history',
'highlight-changes-active-string', 'highlight-changes-initial-state',
'highlight-changes-passive-string',
'icalendar--datetime-to-noneuropean-date', 'image-mode-maybe',
'imenu-example--name-and-position', 'ispell-aspell-supports-utf8',
'lisp-mode-auto-fill', 'locate-file-completion', 'make-coding-system',
'minibuffer-local-must-match-filename-map', 'mouse-choose-completion',
'mouse-major-mode-menu', 'mouse-popup-menubar',
'mouse-popup-menubar-stuff', 'newsticker-groups-filename',
'nnir-swish-e-index-file', 'nnmail-fix-eudora-headers',
'non-iso-charset-alist', 'nonascii-insert-offset',
'nonascii-translation-table', 'password-read-and-add',
'pre-abbrev-expand-hook', 'princ-list', 'print-help-return-message',
'process-filter-multibyte-p', 'read-file-name-predicate',
'remember-buffer', 'rmail-highlight-face', 'rmail-message-filter',
'semantic-after-idle-scheduler-reparse-hooks',
'semantic-after-toplevel-bovinate-hook',
'semantic-before-idle-scheduler-reparse-hooks',
'semantic-before-toplevel-bovination-hook',
'semantic-bovinate-from-nonterminal-full',
'semantic-bovinate-region-until-error', 'semantic-bovinate-toplevel',
'semantic-bovination-working-type',
'semantic-decorate-pending-decoration-hooks',
'semantic-edits-incremental-reparse-failed-hooks',
'semantic-eldoc-current-symbol-info', 'semantic-expand-nonterminal',
'semantic-file-token-stream', 'semantic-find-dependency',
'semantic-find-nonterminal', 'semantic-flex', 'semantic-flex-buffer',
'semantic-flex-keyword-get', 'semantic-flex-keyword-p',
'semantic-flex-keyword-put', 'semantic-flex-keywords',
'semantic-flex-list', 'semantic-flex-make-keyword-table',
'semantic-flex-map-keywords', 'semantic-flex-token-end',
'semantic-flex-token-start', 'semantic-flex-token-text',
'semantic-imenu-bucketize-type-parts',
'semantic-imenu-expand-type-parts', 'semantic-imenu-expandable-token',
'semantic-init-db-hooks', 'semantic-init-hooks',
'semantic-init-mode-hooks', 'semantic-java-prototype-nonterminal',
'semantic-nonterminal-abstract', 'semantic-nonterminal-full-name',
'semantic-nonterminal-leaf', 'semantic-nonterminal-protection',
'semantic-something-to-stream', 'semantic-tag-make-assoc-list',
'semantic-token-type-parent', 'semantic-toplevel-bovine-cache',
'semantic-toplevel-bovine-table', 'semanticdb-mode-hooks',
'set-coding-priority', 'set-process-filter-multibyte',
'shadows-compare-text-p', 'shell-dirtrack-toggle',
'speedbar-navigating-speed', 'speedbar-update-speed', 't-mouse-mode',
'term-dynamic-simple-complete', 'tooltip-hook', 'tpu-have-ispell',
'url-generate-unique-filename', 'url-temporary-directory',
'vc-arch-command', 'vc-default-working-revision' (variable),
'vc-mtn-command', 'vc-revert-buffer', 'vc-workfile-version',
'vcursor-toggle-vcursor-map', 'w32-focus-frame', 'w32-select-font',
'wisent-lex-make-token-table'.

---
** Some functions and variables obsolete since Emacs 22 have been removed:
'gnus-article-hide-pgp-hook', 'gnus-inews-mark-gcc-as-read',
'gnus-treat-display-xface', 'gnus-treat-strip-pgp',
'nnmail-spool-file'.

** The WHEN argument of 'make-obsolete' and related functions is mandatory.
The use of those functions without a WHEN argument was marked obsolete
back in Emacs 23.1.  The affected functions are: 'make-obsolete',
'define-obsolete-function-alias', 'make-obsolete-variable',
'define-obsolete-variable-alias'.

** The variable 'keyboard-type' is obsolete and not dynamically scoped any more.

** The 'values' variable is now obsolete.

\f
* Lisp Changes in Emacs 28.1

+++
** 'unlock-buffer' displays warnings instead of signaling.
Instead of signaling 'file-error' conditions for file system level
errors, the function now calls 'display-warning' and continues as if
the error did not occur.

+++
** New function 'always'.
This is identical to 'ignore', but returns t instead.

+++
** New forms to declare how completion should happen has been added.
'(declare (completion PREDICATE))' can be used as a general predicate
to say whether the command should be present when completing with
'M-x TAB'.  '(declare (modes MODE...))' can be used as a short-hand
way of saying that the command should be present when completing from
buffers in major modes derived from MODE..., or, if it's a minor mode,
whether that minor mode is enabled in the current buffer.

+++
** The 'interactive' syntax has been extended to allow listing applicable modes.
Forms like '(interactive "p" dired-mode)' can be used to annotate the
commands as being applicable for modes derived from 'dired-mode',
or if the mode is a minor mode, that the current buffer has that
minor mode activated.  Note that using this form will create byte code
that is not compatible with byte code in previous Emacs versions.

+++
** New buffer-local variable 'local-minor-modes'.
This permanently buffer-local variable holds a list of currently
enabled non-global minor modes in the current buffer (as a list of
symbols).

+++
** New variable 'global-minor-modes'.
This variable holds a list of currently enabled global minor modes (as
a list of symbols).

+++
** 'define-minor-mode'  now takes an ':interactive' argument.
This can be used for specifying which modes this minor mode is meant
for, or to make the new minor mode non-interactive.  The default value
is t.

+++
** 'define-derived-mode' now takes an ':interactive' argument.
This can be used to control whether the defined mode is a command
or not, and is useful when defining commands that aren't meant to be
used by users directly.

---
** The 'easymenu' library is now preloaded.

---
** New variable 'indent-line-ignored-functions'.
This allows modes to cycle through a set of indentation functions
appropriate for those modes.

** New function 'garbage-collect-maybe' to trigger GC early.

---
** 'defvar' detects the error of defining a variable currently lexically bound.
Such mixes are always signs that the outer lexical binding was an
error and should have used dynamic binding instead.

+++
** New completion function 'affixation-function' to add prefix/suffix.
It accepts a list of completions and should return a list where
each element is a list with three elements: a completion,
a prefix string, and a suffix string.

+++
** 'read-char-from-minibuffer' and 'y-or-n-p' support 'help-form'.
If you bind 'help-form' to a non-nil value while calling these functions,
then pressing 'C-h' ('help-char') causes the function to evaluate 'help-form'
and display the result.

---
** New variables 'read-char-choice-use-read-key' and 'y-or-n-p-use-read-key'.
When non-nil, then functions 'read-char-choice' and 'y-or-n-p' (respectively)
use the function 'read-key' to read a character instead of using the minibuffer.

---
** New user option 'use-short-answers'.
When non-nil, the function 'y-or-n-p' is used instead of
'yes-or-no-p'.  This eliminates the need to define an alias that maps
one to another in the init file.  The same user option also controls
whether the function 'read-answer' accepts short answers.

+++
** 'set-window-configuration' now takes an optional 'dont-set-frame'
parameter which, when non-nil, instructs the function not to select
the frame recorded in the configuration.

+++
** 'define-globalized-minor-mode' now takes a ':predicate' parameter.
This can be used to control which major modes the minor mode should be
used in.

+++
** 'truncate-string-ellipsis' now uses '…' by default.
Modes that use 'truncate-string-to-width' with non-nil, non-string
argument ELLIPSIS, will now indicate truncation using '…' when
the selected frame can display it, and using "..." otherwise.

+++
** New command 'make-directory-autoloads'.
This does the same as the old command 'update-directory-autoloads',
but has different semantics: Instead of passing in the output file via
the dynamically bound 'generated-autoload-file' variable, the output
file is now a explicit parameter.

+++
** New function 'string-search'.
This function takes two string parameters and returns the position of
the first instance of the former string in the latter.

+++
** New function 'string-replace'.
This function works along the line of 'replace-regexp-in-string', but
matching on strings instead of regexps, and does not change the global
match state.

+++
** New function 'process-lines-ignore-status'.
This is like 'process-lines', but does not signal an error if the
return status is non-zero.  'process-lines-handling-status' has also
been added, and takes a callback to handle the return status.

---
** 'ascii' is now a coding system alias for 'us-ascii'.

+++
** New function 'file-backup-file-names'.
This function returns the list of file names of all the backup files
of its file argument.

+++
** New utility function 'directory-empty-p'.
This predicate tests whether a given file name is an accessible
directory and whether it contains no other directories or files.

+++
** 'directory-files' now takes an additional COUNT parameter.
The parameter makes 'directory-files' return COUNT first file names
from a directory.  If MATCH is also given, the function will return
first COUNT file names that match the expression.  The same COUNT
parameter has been added to 'directory-files-and-attributes'.

+++
** The 'count-lines' function now takes an optional parameter to
ignore invisible lines.

---
** 'count-words' now crosses field boundaries.
Originally, 'count-words' would stop counting at the first field
boundary it encountered; now it keeps counting all the way to the
region's (or buffer's) end.

---
** New function 'custom-add-choice'.
This function can be used by modes to add elements to the
'choice' customization type of a variable.

+++
** New function 'require-theme'.
This function is like 'require', but searches 'custom-theme-load-path'
instead of 'load-path'.  It can be used by Custom themes to load
supporting Lisp files when 'require' is unsuitable.

+++
** New function 'file-modes-number-to-symbolic' to convert a numeric
file mode specification into symbolic form.

** New macro 'dlet' to dynamically bind variables.

** The variable 'force-new-style-backquotes' has been removed.
This removes the final remaining trace of old-style backquotes.

** Changes in handling dynamic modules

*** The module header 'emacs-module.h' now contains type aliases
'emacs_function' and 'emacs_finalizer' for module functions and
finalizers, respectively.

*** Module functions can now be made interactive.
Use 'make_interactive' to give a module function an interactive
specification.

*** Module functions can now install an optional finalizer that is
called when the function object is garbage-collected.  Use
'set_function_finalizer' to set the finalizer and
'get_function_finalizer' to retrieve it.

*** Modules can now open a channel to an existing pipe process using
the new module function 'open_channel'.  Modules can use this
functionality to asynchronously send data back to Emacs.

*** A new module API 'make_unibyte_string' is provided.
It can be used to create Lisp strings with arbitrary byte sequences
(a.k.a. "raw bytes").

** 'file-modes', 'set-file-modes', and 'set-file-times' now have an
optional argument specifying whether to follow symbolic links.

** 'parse-time-string' can now parse ISO 8601 format strings,
such as "2020-01-15T16:12:21-08:00".

---
** The new function 'decoded-time-period' has been added.
It interprets a decoded time structure as a period and returns the
equivalent period in seconds.

+++
** The new function 'dom-remove-attribute' has been added.

+++
** The new function 'dom-print' has been added.

---
** 'make-network-process', 'make-serial-process' ':coding' behavior change.
Previously, passing ':coding nil' to either of these functions would
override any non-nil binding for 'coding-system-for-read' and
'coding-system-for-write'.  For consistency with 'make-process' and
'make-pipe-process', passing ':coding nil' is now ignored.  No code in
Emacs depended on the previous behavior; if you really want the
process' coding-system to be nil, use 'set-process-coding-system'
after the process has been created, or pass in ':coding '(nil nil)'.

+++
** 'open-network-stream' now accepts a ':coding' argument.
This allows specifying the coding systems used by a network process
for encoding and decoding without having to bind
'coding-system-for-{read,write}' or call 'set-process-coding-system'.

+++
** 'open-network-stream' can now take a ':capability-command' that's a function.
The function is called with the greeting from the server as its only
parameter, and allows sending different TLS capability commands to the
server based on that greeting.

+++
** 'open-gnutls-stream' now also accepts a ':coding' argument.

+++
** New user option 'process-file-return-signal-string'.
It controls, whether 'process-file' returns a string when a remote
process is interrupted by a signal.

+++
** The behavior of 'format-spec' is now closer to that of 'format'.
In order for the two functions to behave more consistently,
'format-spec' now pads and truncates based on string width rather than
length, and also supports format specifications that include a
truncating precision field, such as "%.2a".

+++
** 'format-spec' now takes an optional SPLIT parameter.
If non-nil, 'format-spec' will split the resulting string into a list
of strings, based on where the format specs (and expansions) were.

---
** New function 'color-values-from-color-spec'.
This can be used to parse RGB color specs in several formats and
convert them to a list '(R G B)' of primary color values.

---
** User option 'uniquify-buffer-name-style' can now be a function.
This user option can be one of the predefined styles or a function to
personalize the uniquified buffer name.

+++
** New variable 'tty-menu-calls-mouse-position-function'.
This controls whether 'mouse-position-function' is called by functions
that retrieve the mouse position when that happens during TTY menu
handling.  Lisp programs that set 'mouse-position-function' should
also set this variable non-nil if they are compatible with the tty
menu handling.

+++
** 'inhibit-nul-byte-detection' is renamed to 'inhibit-null-byte-detection'.

** Byte compiler

+++
*** New byte-compiler check for missing dynamic variable declarations.
It is meant as an (experimental) aid for converting Emacs Lisp code
to lexical binding, where dynamic (special) variables bound in one
file can affect code in another.  For details, see the manual section
"(elisp) Converting to Lexical Binding".

+++
*** 'byte-recompile-directory' can now compile symlinked ".el" files.
This is achieved by giving a non-nil FOLLOW-SYMLINKS parameter.

*** The byte-compiler now warns about too wide documentation strings.
By default, it will warn if a documentation string is wider than the
largest of 80 characters or 'fill-column'.  This is controlled by the
new user option 'byte-compile-docstring-max-column'.

+++
*** 'byte-compile-file' optional argument LOAD is now obsolete.
To load the file after byte-compiling, add a call to 'load' from Lisp
or use 'M-x emacs-lisp-byte-compile-and-load' interactively.

---
** 'unload-feature' now also tries to undo additions to buffer-local hooks.

---
** Some functions are no longer considered safe by 'unsafep':
'replace-regexp-in-string', 'catch', 'throw', 'error', 'signal'
and 'play-sound-file'.

+++
** New variable 'print-integers-as-characters' modifies integer printing.
If this variable is non-nil, character syntax is used for printing
numbers when this makes sense, such as '?A' for 65.

+++
** New error 'remote-file-error', a subcategory of 'file-error'.
It is signaled if a remote file operation fails due to internal
reasons, and could block Emacs.  It does not replace 'file-error'
signals for the usual cases.  Timers, process filters and process
functions, which run remote file operations, shall protect themselves
against this error.

If such an error occurs, please report this as bug via 'M-x report-emacs-bug'.
Until it is solved you could ignore such errors by performing

    (setq debug-ignored-errors (cons 'remote-file-error debug-ignored-errors))

+++
** The error 'ftp-error' belongs also to category 'remote-file-error'.

+++
** Buffers can now be created with certain hooks disabled.
The functions 'get-buffer-create' and 'generate-new-buffer' accept a
new optional argument INHIBIT-BUFFER-HOOKS.  If non-nil, the new
buffer does not run the hooks 'kill-buffer-hook',
'kill-buffer-query-functions', and 'buffer-list-update-hook'.  This
avoids slowing down internal or temporary buffers that are never
presented to users or passed on to other applications.

---
** 'start-process-shell-command' and 'start-file-process-shell-command'
do not support the old calling conventions any longer.

** Functions operating on local file names now check that the file names
don't contain any NUL bytes.  This avoids subtle bugs caused by
silently using only the part of the file name until the first NUL byte.

** New coding-systems for EBCDIC variants.
New coding-systems 'ibm256', 'ibm273', 'ibm274', 'ibm277', 'ibm278',
'ibm280', 'ibm281', 'ibm284', 'ibm285', 'ibm290', 'ibm297'.  These are
variants of the EBCDIC encoding tailored to some European and Japanese
locales.  They are also available as aliases 'ebcdic-cp-*' (e.g.,
'ebcdic-cp-fi' for the Finnish variant 'ibm278'), and 'cp2xx' (e.g.,
'cp278' for 'ibm278').  There are also new charsets 'ibm2xx' to
support these coding-systems.

** The JSON functions 'json-serialize', 'json-insert',
'json-parse-string', and 'json-parse-buffer' now implement some of the
semantics of RFC 8259 instead of the earlier RFC 4627.  In particular,
these functions now accept top-level JSON values that are neither
arrays nor objects.

---
** 'while-no-input-ignore-events' accepts more special events.
The special events 'dbus-event' and 'file-notify' are now ignored in
'while-no-input' when added to this variable.

\f
* Changes in Emacs 28.1 on Non-Free Operating Systems

---
** On macOS, Xwidget is now supported.
If Emacs was built with xwidget support, you can access the embedded
webkit browser with 'M-x xwidget-webkit-browse-url'.  Viewing two
instances of xwidget webkit is not supported.

*** Downloading files from xwidget-webkit is now supported.
The new variable 'xwidget-webkit-download-dir' says where to download to.

*** New functions for xwidget-webkit mode
'xwidget-webkit-clone-and-split-below',
'xwidget-webkit-clone-and-split-right'.

*** New variable 'xwidget-webkit-enable-plugins'.

+++
** On macOS, Emacs can now load dynamic modules with a ".dylib" suffix.
'module-file-suffix' now has the value ".dylib" on macOS, but the
".so" suffix is supported as well.

+++
** On MS-Windows, Emacs can now toggle the IME.
A new function 'w32-set-ime-open-status' can now be used to disable
and enable the MS-Windows native Input Method Editor (IME) at run
time.  A companion function 'w32-get-ime-open-status' returns the
current IME activation status.

+++
** On MS-Windows, Emacs can now use the native image API to display images.
Emacs can now use the MS-Windows GDI+ library to load and display
images in JPEG, PNG, GIF and TIFF formats.  This support is enabled
unless Emacs was configured '--without-native-image-api'.

This feature is experimental, and needs to be turned on to be used.
To turn this on, set the variable 'w32-use-native-image-API' to a
non-nil value.  Please report any bugs you find while using the native
image API via 'M-x report-emacs-bug'.

---
** The user option 'make-pointer-invisible' is now honored on macOS.

--
** On macOS, 's-<left>' and 's-<right>' are now bound to
'move-beginning-of-line' and 'move-end-of-line' respectively.  The commands
to select previous/next frame are still bound to 's-~' and 's-`'.

\f
----------------------------------------------------------------------
This file is part of GNU Emacs.

GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.

\f
Local variables:
coding: utf-8
mode: outline
paragraph-separate: "[ 	\f]*$"
end:

debug log:

solving 73ceb96f1f ...
found 73ceb96f1f in https://yhetil.org/emacs-bugs/acf6f0cd7e10d61fab8b@heytings.org/
found d3a8748ded in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 d3a8748ded6dda56d68d2d7014b746c754d8681b	etc/NEWS

applying [1/1] https://yhetil.org/emacs-bugs/acf6f0cd7e10d61fab8b@heytings.org/
diff --git a/etc/NEWS b/etc/NEWS\r
index d3a8748ded..73ceb96f1f 100644\r

Checking patch etc/NEWS...
Applied patch etc/NEWS cleanly.

index at:
100644 f96cdab45a94c4e62179458d762a1c29b101dab2	etc/NEWS

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).