tree a51c8dc3eab49c3cbaed337d4d8047502251b749
parent 1f600d627a7e227b609a655e222c8b187d09eff8
author Hans Wennborg <hans@chromium.org> 1594806053 +0200
committer Copybara-Service <copybara-worker@google.com> 1598638651 -0700

Bump the trunk major version to 12

and clear the release notes.

GitOrigin-RevId: 7ab7b979d29e1e43701cf690f5cf1903740f50e3