Moz-phab 1.9.0 Released

Bugs resolved in Moz-Phab 1.9.0:

  • bug 1923371 add Python 3.13 support to CI
  • bug 1928130 add a test to enforce bug numbers in commit messages in moz-phab repo
  • bug 1958111 reduce code duplication in moz-phab reorg for child transactions
  • bug 1958320 moz-phab tests for Python 3.11+ are not required to pass before publishing
  • bug 1958321 bump minimum Python version to 3.9, drop 3.8 support
  • bug 1960991 Git.map_callsign_to_unified_head assumes a Mercurial-bookmark style remote branch
  • bug 1963801 Local VCS (hg) is different from the one defined in the repository (git) when submitting patches

Discuss these changes in #conduit on Slack or Matrix.