On 2024-09-06 13:50, Simon McVittie wrote: > According to debian/README.source (which was written when Ubuntu 22.04 > was current), our policy is: > >> If it's straightforward to avoid a newer dependency without too much >> extra code, we can consider extending [the supported host system] to: >> >> - previous Debian stable >> - previous Ubuntu LTS >> >> As of mid 2023, this means Debian 11, Ubuntu 20.04 and Python 3.8. > > Now that Ubuntu 24.04 is current, I'd like to officially increase the > recommended host system to Debian 12 or Ubuntu 24.04, and increase the > minimum to Debian 11 or Ubuntu 22.04. That would mean we can rely on > Python 3.9: > > - replace List[Set[str]] with list[set[str]], etc. > - dict1 | dict2 > - str.removeprefix, str.removesuffix > - pathlib.Path.readlink > - stderr is line-buffered > > Please check whether any Ubuntu infrastructure is relying on being able > to run a current version of autopkgtest on a 20.04 host system.
This _is_ the case, however I believe autopkgtest development should not stop because of this. It's up to us Ubuntu people to upgrade the infrastructure, and the "previous Ubuntu LTS" commitment we make in in d/README.source is more than reasonable. > We could also consider changing the policy from "previous Debian stable" > to "previous Debian stable, if still supported outside LTS", which > would mean we can drop Debian 11 support now that it has moved to LTS, > and rely on Debian 12 or Ubuntu 22.04, with Python 3.10: I think this is reasonable. > Note that this is about the supported host OS version (host for VMs, > containers, etc.). For the the testbed (the system under test, inside VMs, > containers, etc.) we continue to allow very old versions, although this > is "at risk" until/unless someone from Debian (E)LTS or Ubuntu ESM can > fix #1078445. (OT: speaking of #1078445, I replied there some time ago, basically saying that it does not look like a bug to me. I'll check again in case I overlooked anything, but please check my comment on the culprit maybe being your apt-cacher-ng.)
