Merge changes Ib55c4574,Ie40be9e6,I2c3f9e6e,Id3ec359f into lts-v2.8

* changes:
  docs(changelog): changelog for lts-v2.8.9 release
  docs(changelog): display all sections
  docs(changelog): update errata-abi topic
  feat(build): manage patch version in Makefile