Firebase Apple Open Source Development Files

The Firebase Apple SDK (12.9.0) is now available. For more details, see the Firebase Apple SDK release [notes.](https://firebase.google.com/support/release-notes/ios#12

To install this SDK, see Add Firebase to your project.

What's Changed

• fix: collisions in artifact names from re-usable catalyst job by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15709
• fix: exempt changelogs from CODEOWNERS by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15712
• [Release] Update Carthage artifacts for 12.8.0 by @andrewheard in https://github.com/firebase/firebase-ios-sdk/pull/15713
• [Release] Update versions for 12.9.0 by @andrewheard in https://github.com/firebase/firebase-ios-sdk/pull/15714
• [Auth] Should not force App Check token refreshes by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/15716
• Fix SymbolCollision workflow flakes by @google-labs-jules[bot] in https://github.com/firebase/firebase-ios-sdk/pull/15717
• [FirebaseAI] Implicit caching support by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/14944
• [AI] URL Context is now GA in Gemini models by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/15719
• [AI] Update integration test for changed Gemini 3 thinking by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/15708
• [AI] Restore URL Context integration test by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/15707
• [AI] minimal thinking level no longer thinks by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/15721
• Add unit test for FirebaseOptions copying by @google-labs-jules[bot] in https://github.com/firebase/firebase-ios-sdk/pull/15722
• fix: install missing sims in sdk.storage.yml by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15724
• fix: install missing sims in sdk.auth.yml by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15731
• [AI] More robust thoughtTokenCount gemini 3 test by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/15730
• [AI] Add an implicit caching unit test by @paulb777 in https://github.com/firebase/firebase-ios-sdk/pull/15727
• [Crashlytics] Conforming to Mach IPC security restrictions by @themiswang in https://github.com/firebase/firebase-ios-sdk/pull/15612
• fix: flaky FIRMessagingPendingTopicsListTest.m by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15726
• [Crashlytics] Mach IPC identity protected address backwards compatibility by @themiswang in https://github.com/firebase/firebase-ios-sdk/pull/15725
• [Crashlytics] Add attribute for Info.plist to manually force back to mach exception default behavior by @themiswang in https://github.com/firebase/firebase-ios-sdk/pull/15735
• fix: install missing sims in sdk.performance.yml by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15738
• fix: extend lint timeout in sdk.crashlytics.yml by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15739
• fix: install missing sims in sdk.inappmessaging.yml by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15741
• chore: remove unused scripts by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15744
• fix: fail prerelease workflow if prerelease tagging fails by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15747
• [Firestore] Update proto copyright dates by @dlarocque in https://github.com/firebase/firebase-ios-sdk/pull/15751
• fix: Xcode/OS matrices in reusable SPM and CP workflows by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15732
• fix: Move reusable SPM and CocoaPods workflows to use Xcode 26.2 by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15756
• Change the behaviour of not-in and != when convert standard query to pipeline by @cherylEnkidu in https://github.com/firebase/firebase-ios-sdk/pull/15667
• docs: changelogs for m176 by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15771
• docs: add naming guidelines for GHA by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15772
• chore: update firestore binary for m176 (#15779) by @ncooke3 in https://github.com/firebase/firebase-ios-sdk/pull/15781

Full Changelog: https://github.com/firebase/firebase-ios-sdk/compare/12.8.0...12.9.0