• Fixes a bug where rounds=0 was accepted for SHA1 hashes (#1617).
• Allows support for using \n in the --releaseNotes option of the appdistribution:distribute command (#1739).
• Specifies schema version when dealing with IAM Policies related to Extensions.
• Functions emulator now re-uses workers to avoid running global code on each execution (#1353).
• Improves error handling of unreachable regions for Cloud Functions deploys.