I know apt-get dist-upgrade is expected to break things during the GCC5 transition, but is apt-get upgrade safe to execute ?

  • Can you expand upon your definition of "safe" so there is a common understanding?
    – jeremiah
    Commented Sep 1, 2015 at 8:41
  • "Safe" would mean "does not break the distro" I think.
    – kursus
    Commented Sep 1, 2015 at 9:33
  • It would help to know which distribution you're tracking; stable, testing or unstable (sid)?
    – jcharaoui
    Commented Oct 10, 2015 at 22:24

1 Answer 1


Here's the announcement sent to visitors inquiring about this on the official #debian-next IRC channel on the OFTC network.

One of the biggest transitions ever undertaken in Debian: new versions of libstdc++/gcc require over 3000 source packages to be recompiled. Don't expect packages in sid to be installable; use testing instead. https://release.debian.org/transitions/html/libstdc++6.html (and if you didn't already know this, ask yourself if you should be using sid).

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