Comment 15 for bug 1926355

Hi, the libc update + removal caused the following issue:

1) On 2021-04-26, libc version 2.31-0ubuntu9.3 got uploaded to Ubuntu Focal.
2) Many people updated to it.
3) Two days later, on 2021-04-28, it got removed because it was causing the issues descripted in this bug report.
4) If any of the persons that updated, tries to install libc6-dev now, it says it's not installable as it depends on libc6=2.31-0ubuntu9.2, while 2.31-0ubuntu9.3 is installed.

In some cases they can downgrade with `apt install libc6=2.31-0ubuntu9.2`, but that's not always easy when additional dependencies are involved.

I believe a solution would be to re-upload 2.31-0ubuntu9.2 as 2.31-0ubuntu9.4. This would then not break snap, while allowing people to install libc6-dev, as it wouldn't have a lower version than in the archives anymore.