• [BREAKING] Changed firestore:backups:list --json to return a listBackupsResponse object instead of a raw array of backups.
• [BREAKING] Removed support for '.bolt' rules files.
• [BREAKING] Removed support for running emulators with Java versions prior to 21.
• [BREAKING] Removed deprecated firebase --open-sesame and firebase --close-sesame commands. Use firebase experiments:enable and firebase experiments:disable instead.
• [BREAKING] Enforce strict timeout validation for functions. (#9540)
• [BREAKING] Update dataconnect:\* commands to use flags instead of positional arguments for --service & --location. Changed output type of dataconnect:sql:migrate --json (#9312)
• [BREAKING] When using 'firebase-tools' as a Node module, cli.auth.upload has been renamed to cli.auth.import and cli.appdistribution.testers.delete has been renamed to cli.appdistribution.testers.remove.
• [BREAKING] Updated Firebase Data Connect emulator version to v3.0.0
  • [BREAKING] Fixed generated code character case when letters follow numbers (#9567).
  • [BREAKING] Dart codegen: Int64 types are now serialized and deserialized using BigInt.
  • [BREAKING] Kotlin codegen: Removed magic "convenience renames" of keys and counts in selection sets (#9571).
  • Eagerly load config upon any requests from VS Code Extensions or Firebase CLI. This ensures the emulator always serve the latest local configs.
  • Kotlin codegen: Removed vestigial FIREBASE_DATA_CONNECT_GENERATED_FILE section at the bottom of each generated file.
• Updated Firestore Emulator to v1.20.2, which includes minor bug fixes for Datastore Mode.
• Improved command loading performance by implementing lazy loading.
• Add a confirmation in firebase init dataconnect before asking for app idea description. (#9282)