How to know all the dates when was accomplished all the full upgrades versions of the OS?

Ubuntu
1

Hello Friends

I have a machine with Ubuntu Desktop that was full upgraded as follows:

  • 18:04
  • 20:04
  • 22:04

How would be possible to know the date when was accomplished each full upgrade? In this case for the 3 versions

2

If you still have the kernels for each upgrade, you could look at the kernel file dates with ls.

4 Likes
3

Thanks for the reply

How to know that? Some specific location to see?

But sadly I must assume they were removed due the sudo apt autoremove , sudo apt autoclean and sudo apt clean execution commands. It to release disk space.