Re: What's our minimum supported Python version?

Re: Jelte Fennema-Nio
> - Ubuntu 20.04 can easily install Python3.9 from the official package
> repos. Currently this is still supported by Cristoph his pgdg repos,
> but looks like that support might be removed before PG18 given it's
> transition to "Expanded Security Maintenance" next month.

20.04 (focal) is already too old for PG18 because of llvm version
woes, so we are already not building it there. (I forgot what the
precise problem was, but I figured focal would be EOL before the PG18
release anyway.)

> - Ubuntu 22.04 can easily install Python3.11 from the official package
> repos. Still has full upstream support for 2 years.
> - Debian Bullseye (EOL in 1.5 years) can only install Python3.9 from
> the official package repos.
> - Debian Bookworm (EOL in 3 years) has Pytho
^ n 3.11
> - Python 3.8 itself is declared EOL by upstream
> - Python 3.10 will be declared EOL by upstream around the release of PG19

> Based on all this info, I think that it sounds quite reasonable to
> start requiring Python3.9 for PG18. And for PG19 we could probably
> start requiring Python3.11

Ack. Bullseye LTS will be supported until August 2026, so very close
to the PG19 release, but it should work out not to support PG19 there.

https://wiki.debian.org/LTS/

Christoph