Changelog for Codec Tweak Tool?

I'm curious if it's worth it to update Codec Tweak Tool.
Both codecguide and videohelp don't give any details on what's changed.

Are you guys on github or gitlabs?
It'd be nice to see the source code and commits to see if it's worth updating.

It is not open source and there is no changelog. Differences between versions are small. No important new features have been added recently.