Update version to 42.1.0, add CHANGELOG (#12986)#12989

Merged

alamb merged 3 commits intoapache:mainfrom alamb:alamb/port_release_notes

Oct 20, 2024

+152-110

Commits on Oct 17, 2024

Update version to 42.1.0, add CHANGELOG (apache#12986 )
alamb
committed

Commits on Oct 18, 2024