ANDROID Should I Upgrade my software? - Whats new in the new version?

Hi Gents!

I have searched for an overview of Whats new / fixed in the various versions - with no luck! -
Is there such a post/thread?

I’m on version 9.6.29.596752, and can see that there in "newer" versions available?

Thanks in advance!

@ ADMIN: if this is wrong thread/sector - please delete or move!