Firebase Unity 13.16.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.16.0

• Changes
  • General: Update to Firebase C++ SDK version 13.11.0.
  • General (Android): Update to Firebase Android BoM version 34.18.0.
  • General (iOS): Update to Firebase SDK version 12.18.0.
  • Firebase AI: Add support for RealtimeInputConfig in the Live API, enabling configuration of Voice Activity Detection (VAD), activity handling (interruption behavior), and turn coverage.
  • Firebase AI: Added manual activity demarcation methods (SendStartActivityRealtimeAsync, SendStopActivityRealtimeAsync) and updated realtime input streaming to support audio, video, and text payloads.
  • General (Editor): Fixed a deadlock / hang during domain reload and editor quitting
    by gracefully disposing Firebase apps and terminating native listeners on the main thread
    (#1485).
  • Firebase AI: Removed deprecated Imagen methods and types due to Imagen
    models being shut down in August 2026. As a replacement, you can
    migrate your apps to use Gemini Image models (the "Nano Banana" models).
  • Firebase AI: Added AudioAsFloat property to GenerateContentResponse to seamlessly decode audio/ byte arrays into normalized float arrays.
  • Firebase AI: Allowed LiveSessionResponse to use any audio/ MIME type returned by text-to-speech models.
  • Messaging: Added new Registration methods using Installation Ids.
    Deprecated old Token based methods.
  • Remote Config: Add support for setting Custom Signals.
  • Functions / Firebase AI: Fixed a UnityException thrown when invoking Cloud Functions
    or connecting to Live Generative Models from background threads
    (#1506).

Firebase Unity SDK 13.15.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.15.0

• Changes
  • General: Update to Firebase C++ SDK version 13.11.0.
  • General (Android): Update to Firebase Android BoM version 34.17.0.
  • General (iOS): Update to Firebase Cocoapods version 12.17.0.
  • Firebase AI: Add the AgentPlatform backend, and deprecate the VertexAI one, to reflect the renaming of Vertex AI to Gemini Enterprise Agent Platform. Note that the default location is different between the two.
  • Realtime Database (Desktop): Fixed an intermittent use-after-free crash (ACCESS_VIOLATION) when detaching a listener while a WebSocket listen response is pending.

Firebase Unity 13.14.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.14.0

• Changes
  • General: Update to Firebase C++ SDK version 13.10.0.
  • General (Android): Update to Firebase Android BoM version 34.16.0.
  • General (iOS): Update to Firebase Cocoapods version 12.16.0.
  • General (iOS): Fix issues with enabling new Swift Xcode Project type.
  • Crashlytics: Fix issues when parsing stripped stacktraces.
    (#1484)
  • Functions: Added support for Callable Functions Streaming via StreamAsync.
  • General: Implement automated linker rules merging for UPM packages to prevent managed code stripping from removing reflection-accessed methods (like FirebaseAuth and FirebaseAppCheck).

Firebase Unity 13.13.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.13.0

• Changes
  • General: Update to Firebase C++ SDK version 13.9.0.
  • General (Android): Update to Firebase Android BoM version 34.15.0.
  • General (iOS): Update to Firebase Cocoapods version 12.15.0.
  • Firebase AI: Add support for advanced speech configurations, enabling multi-speaker setup and language code preference
    in text-to-speech generation.
  • General: Fixed an issue with Firebase.App.Internal, Firebase.Functions, and Firebase.FirebaseAI
    asmdefs that were causing build issues on unsupported platforms.
  • Auth (Desktop): Fixes Auth requests when App Check is enabled.

Firebase Unity 13.12.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.12.0

• Changes
  • General: Update to Firebase C++ SDK version 13.8.0.
  • General (Android): Update to Firebase Android BoM version 34.14.0.
  • General (iOS): Update to Firebase Cocoapods version 12.14.0.
  • Analytics: Add support for Apple's StoreKit 2 transactions. Add new LogAppleTransactionAsync method
    that takes in the App Store transaction string and logs the transaction.
  • Firebase AI: Add support for limited-use App Check tokens.

Firebase Unity 13.11.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.11.0

• Changes
  • General: Update to Firebase C++ SDK version 13.7.0.
  • General (Android): Update to Firebase Android BoM version 34.13.0.
  • General (iOS): Update to Firebase Cocoapods version 12.13.0.
  • General (iOS, tvOS, Desktop): iOS, tvOS, and macOS SDKs are now built using Xcode 26.2.
  • General: Strip debug symbols from Mac and Linux libraries, to reduce library size.
  • General: Enforce the Xcode CMake generator for iOS and tvOS SDKs.
  • General (iOS): Improve initialization to address intermittent crashes on iOS 26. (#1436).
  • Firebase AI: Add support for Grounding with Google Maps.
  • Firebase AI: Improved image configuration when using Nano Banana.
  • Firebase AI: Add support for LiveSession resumption.
  • Storage: Added ListAsync API to list items and prefixes under a reference.
  • Functions: Fixed tgz export, added missing asmdef for functions. Fixes issue where Functions were not being exported correctly in the tgz build.
  • Firebase AI: Fix tgz export, added missing asmdef for Firebase AI. Fixes issue where Firebase AI was not being exported correctly in the tgz build.
  • Functions: Added support for passing and enforcing Limited Use App Check tokens.

Firebase Unity 13.10.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.10.0

• Changes
  • General: Update to Firebase C++ SDK version 13.6.0.
  • General (Android): Update to Firebase Android BoM version 34.12.0.
  • General (iOS): Update to Firebase Cocoapods version 12.12.0.
  • Firebase AI: All Imagen models are deprecated and will shut down as early
    as June 2026. As a replacement, you can
    migrate your apps to use Gemini Image models (the "Nano Banana" models).
  • Firebase AI: Add support for the JsonSchema formatting.
  • Firebase AI: Add support for simplified object generation with GenerateObjectAsync.
  • Firebase AI: Add support for automated function calling in Chat with AutoFunctionDeclaration.
  • Firebase AI: Add support for TemplateChatSession.
  • Functions: Rewrote internal serialization logic to C#. Removes dependency on internal C++ implementation.

Firebase Unity SDK 13.9.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.9.0

• Changes
  • General (Android): Update to Firebase Android BoM version 34.10.0.
  • General (iOS): Update to Firebase SPM/Cocoapods version 12.10.0.
  • Firestore (iOS): Fix crash when using Auth or App Check Credentials.
  • App Check: Updated App Check to support limited-use tokens. This is a
    breaking change for custom providers, which must now implement the new
    GetLimitedUseTokenAsync method. If a custom provider does not support
    this feature, it can return a standard token from this method.

Firebase Unity SDK 13.8.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.8.0

• Changes
  • Firebase AI: Add LiveSessionGoingAway to handle backend closing.
  • Firebase AI: Add support for CachedContentTokenCount and CacheTokensDetails in UsageMetadata.

Firebase Unity SDK 13.7.0

Prebuilt versions of the libraries are available for download here for a zip file, here for individual asset package, or here for individual .tgz package for Unity Package Manager.

13.7.0

• Changes
  • General: Update to Firebase C++ SDK version 13.4.0.
  • General (Android): Update to Firebase Android BoM version 34.8.0.
  • General (iOS): Update to Firebase Swift Package / Cocoapod version 12.8.0.
  • General: Update to EDM4U version 1.2.187.
  • General (iOS): Added support for linking against Swift Packages, instead of Cocoapods, via EDM4U.
  • Firebase AI: Added support for Thinking Levels, used by Gemini 3 models to define their thinking configuration, instead of Thinking Budget.