Upgrading my Ubuntu - Potential PostgreSQL index corruption when upgrading OS

I have a doubt and please let me know if I am misunderstanding.

I am running my Gitlab self-hosted in a Ubuntu 20.04 LTS and I want to upgrade to Ubuntu 22.04 LTS, everything looks good but I found this warning about glibc that can corrupt data,

Screenshot 2025-04-25 at 1.19.40 PM1416×632 112 KB

so I decided to research more about this issue. In the documentation of Gitlab I found this table:

|Operating system| glibc version|

|CentOS 7 |2.17|
|RedHat Enterprise 8 |2.28|
|RedHat Enterprise 9 |2.34|
|Ubuntu 18.04 |2.27|
|Ubuntu 20.04 |2.31|
|Ubuntu 22.04 |2.35|
|Ubuntu 24.04 |2.39|

If I am running Ubuntu 20.04 with glibc version 2.31, I assume that I don’t have the risk that my data be corrupted when my server is upgraded to Ubuntu 22.04 running glibc version 2.35. My understanding is that systems that could be affected are all those where the glibc library is in version older than 2.28.

Please, any comments are very wellcome.

I’ve done upgrades where that message has popped up. My existing Gitlab installation started on Debian 9, and was upgraded later through Debian 10, 11 and 12. There also would have been glibc changes as well. The blue text I believe is a link that will explain more in relation to that. But yes it would suggest if running an older version than Glibc 2.2.8 would be more problematic.

That said, do ensure that you do have backups that you can recover from just in case something does go wrong.