Missing UPGRADE file in asterisk 20.6.0

Hi,
I just downloaded asterisk 20.6.0 and extracted it. In the past there was an UPGRADE.txt file describing any changes an incompatibilities. It still exists in 19.x. Where is it gone?

Best regards
Karsten

There’s a specific Upgrade Notes section in the CHANGES.md file. If it’s empty, there’s nothing.

Thanks a lot, I found some notes.
Best regards
Karsten