is there any reason why a LTS Ubuntu distro doesn't update the patch version of the packages?

Question

is there any reason why a LTS Ubuntu distro doesn't update the patch version of the packages?

For e.g:

Ubuntu 24.04 LTS has libsdl2-2.30.0 now SDL2 version 2.30 is at 2.30.8

Is there any reason why the LTS version is always available with potential buggy/outdated pacakges?

EDIT

This is specific to the bug/patch fixes of a package and it is not related to a newer minor or major version.

So if a package is out with version 1.0.0 and a newer bug fix version is out, there will be a new version 1.0.1.

Why Ubuntu LTS doesn't update that pacakge to use the patched version?