Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

UPB (Python/PHP/Ruby C-Extension)

• Remove src prefix from proto import (protocolbuffers/upb@e05f22a)

Other

• Fix .gitmodules to use the correct absl branch (f51da1f)
• Remove erroneous dependency on googletest (#12276)