[Python-Dev] when to fix cross-version bugs?

[Brian Curtin]

On Fri, Sep 6, 2013 at 9:51 AM, Ethan Furman <ethan at stoneleaf.us> wrote:
> I recently committed a fix for unicodeobject.c so that the %d, %i, and %u
> format specifiers always output values (otherwise, in subclasses, the str()
> was used instead).
>
> Should this be fixed in 3.3 as well?
>
> What guidelines determine when a bug is fixed in previous versions?

If it's a bug in that version and the version is accepting bug fixes,
i.e., not in security mode, go for it. This includes crossing the 2/3
boundary if applicable.