From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.devel Subject: Re: RCS, again: another removed functionality: undo last-checkin Date: Thu, 01 Oct 2015 22:27:10 -0400 Message-ID: References: <87oagx6tzz.fsf@mat.ucm.es> <55FF4026.2050004@yandex.ru> <83si68nu4i.fsf@gnu.org> <87eghsfd3m.fsf@fencepost.gnu.org> <83k2rknr2c.fsf@gnu.org> <87mvwellmg.fsf@uwakimon.sk.tsukuba.ac.jp> <56023A6C.3020302@yandex.ru> <5602BE3E.1050009@yandex.ru> <5602C4DE.8020105@yandex.ru> <560B4899.2070708@yandex.ru> <83y4fobegc.fsf@gnu.org> <560BC73C.4040403@yandex.ru> <83d1x0atb2.fsf@gnu.org> <560C9EDA.3040207@yandex.ru> <83vbar9hv3.fsf@gnu.org> <560D2CFD.50702@yandex.ru> <83a8s2agar.fsf@gnu.org> Reply-To: rms@gnu.org NNTP-Posting-Host: plane.gmane.org Content-Type: text/plain; charset=Utf-8 X-Trace: ger.gmane.org 1443752873 4189 80.91.229.3 (2 Oct 2015 02:27:53 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 2 Oct 2015 02:27:53 +0000 (UTC) Cc: stephen@xemacs.org, dak@gnu.org, emacs-devel@gnu.org, monnier@iro.umontreal.ca, dgutov@yandex.ru To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Oct 02 04:27:44 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Zhq4U-0004QL-C3 for ged-emacs-devel@m.gmane.org; Fri, 02 Oct 2015 04:27:42 +0200 Original-Received: from localhost ([::1]:57087 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zhq4T-0006fA-GJ for ged-emacs-devel@m.gmane.org; Thu, 01 Oct 2015 22:27:41 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:60999) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zhq4B-0006bC-6F for emacs-devel@gnu.org; Thu, 01 Oct 2015 22:27:23 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zhq4A-0001p5-CA for emacs-devel@gnu.org; Thu, 01 Oct 2015 22:27:23 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:57026) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zhq3z-0001i2-8j; Thu, 01 Oct 2015 22:27:11 -0400 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1Zhq3y-0000gG-5d; Thu, 01 Oct 2015 22:27:10 -0400 In-reply-to: <83a8s2agar.fsf@gnu.org> (message from Eli Zaretskii on Thu, 01 Oct 2015 16:07:08 +0300) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:190622 Archived-At: [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > Breaking backward compatibility is about the worst crime package > maintainers could commit, in my opinion. I mostly agree. If we want to drop a feature, we should mark it obsolete in version N and delete it in version N+1 or N+2. Thus, if we mark it obsolete in version 25, we could delete it in version 26. We must never feel any hurry to do this. -- Dr Richard Stallman President, Free Software Foundation (gnu.org, fsf.org) Internet Hall-of-Famer (internethalloffame.org) Skype: No way! See stallman.org/skype.html.