Merge #20107: doc: Collect release-notes snippets

faa0847 doc: Add release notes for #20101 (MarcoFalke)
99992e7 doc: Collect release-notes snippets (MarcoFalke)

Pull request description:

  Also add a note for #20101

ACKs for top commit:
  fanquake:
    ACK faa0847 - no need to bike-shed here as these will all get massaged to death in the wiki anyways.

Tree-SHA512: 63d3597e2bbd422ec182e76112110477d22e3afedb479114ddec958405bcdd63492df9477267aac65605612af49c0aff6246b1bc3d41dd606d6d61c30117c109

Author: fanquake