update the SPM and the readme for release

Author: AustinBenoit

cmake/firebase_unity_version.cmake

@@ -20,7 +20,7 @@ set(FIREBASE_UNITY_SDK_VERSION "13.10.0"
 set(FIREBASE_IOS_POD_VERSION "12.12.0"
     CACHE STRING "The version of the top-level Firebase Cocoapod to use.")
 
-set(FIREBASE_SPM_VERSION "12.10.0"
+set(FIREBASE_SPM_VERSION "12.12.0"
     CACHE STRING "The version of the top-level Firebase Swift Package to use.")
 
 # https://github.com/googlesamples/unity-jar-resolver

docs/readme.md

@@ -109,8 +109,10 @@ Support
 
 Release Notes
 -------------
-### Upcoming
+### 13.10.0
 -   Changes
+    - 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)](https://firebase.google.com/docs/ai-logic/imagen-models-migration).