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aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -4.51 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 3FF78AE37 X-Spam-Score: -4.51 X-Migadu-Scanner: scn0.migadu.com X-TUID: rxaV937Gr24K Hi Tobias, thanks for your thoughts. Tobias Geerinckx-Rice writes: > pelzflorian (Florian Pelz) =E5=86=99=E9=81=93=EF=BC=9A >> @quotation Note >> Naturally, no security fixes can be provided for old versions of Guix >> or its channels. This also means that careless use of @command{guix >> time-machine} opens the door to downgrade attacks. >> @xref{Invoking guix pull, @option{--allow-downgrades}}. >> @end quotation > =E2=80=98Attack=E2=80=99 is a very big word. It should not end a paragra= ph. What > would the downgrade attack=E2=80=94distinct from a downgrade=E2=80=94look= like? My choice of words was the same as in the unattended upgrades service, but perhaps I should add before the @xref: Suggestions to ``just use the time machine'' could be attempts to trick people to use old software. But they can also get you back to a working state. Regards, Florian