Build differences

[igorokk]

Hi,

I recently started flashing and am currently running an optimised 6.1 stock ROM with the build number 20764.

Now I noticed there are some builds which seem to be quite far ahead like #21051 and for 6.5 even #21820. This is quite a difference, at least in numeric terms and I would usually assume there were some major changes respectively important fixes.

Is this true? Would it be generally recommended to upgrade to at least #21051 (for 6.1)?

Thank you.