upgrading old releases

[Paul Smith]

On Wed, 2022-11-16 at 15:00 -0500, Jared Greenwald wrote:
> I imagine at some point in the past it was supported to upgrade from
> 18.10 to 19.04 and from there to a much newer version.

The only upgrade path that was ever supported from 18.10, was to go
through all versions until you get to an LTS release.  So you'd need to
upgrade 18.10 -> 19.04 -> 19.10 -> 20.04 LTS.  From 20.04 LTS you could
upgrade directly to 22.04 LTS if you wanted to.

If you want to make this effort, I think you can find what you need
here:

https://help.ubuntu.com/community/EOLUpgrades