diff --git a/cmake/android_dependencies.cmake b/cmake/android_dependencies.cmake
index 48e444c9..97075975 100644
--- a/cmake/android_dependencies.cmake
+++ b/cmake/android_dependencies.cmake
@@ -16,71 +16,71 @@
 
 set(FIREBASE_APP_ANDROID_DEPS
     "com.google.firebase:firebase-common:21.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
-    "com.google.android.gms:play-services-base:18.4.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
+    "com.google.android.gms:play-services-base:18.5.0"
 )
 
 set(FIREBASE_ANALYTICS_ANDROID_DEPS
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_APP_CHECK_ANDROID_DEPS
     "com.google.firebase:firebase-appcheck:18.0.0"
     "com.google.firebase:firebase-appcheck-debug:18.0.0"
     "com.google.firebase:firebase-appcheck-playintegrity:18.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_AUTH_ANDROID_DEPS
     "com.google.firebase:firebase-auth:23.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_CRASHLYTICS_ANDROID_DEPS
-    "com.google.firebase:firebase-crashlytics-ndk:19.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-crashlytics-ndk:19.0.2"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_DATABASE_ANDROID_DEPS
     "com.google.firebase:firebase-database:21.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
-    "com.google.android.gms:play-services-base:18.4.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
+    "com.google.android.gms:play-services-base:18.5.0"
 )
 
 set(FIREBASE_DYNAMIC_LINKS_ANDROID_DEPS
-    "com.google.firebase:firebase-dynamic-links:22.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-dynamic-links:22.1.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_FIRESTORE_ANDROID_DEPS
     "com.google.firebase:firebase-firestore:25.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_FUNCTIONS_ANDROID_DEPS
     "com.google.firebase:firebase-functions:21.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_INSTALLATIONS_ANDROID_DEPS
     "com.google.firebase:firebase-installations:18.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 # iid is needed by messaging to avoid a conflict with functions
 set(FIREBASE_MESSAGING_ANDROID_DEPS
     "com.google.firebase:firebase-messaging:24.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
     "com.google.firebase:firebase-iid:21.1.0"
     "com.google.flatbuffers:flatbuffers-java:1.12.0"
 )
 
 set(FIREBASE_REMOTE_CONFIG_ANDROID_DEPS
     "com.google.firebase:firebase-config:22.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
 
 set(FIREBASE_STORAGE_ANDROID_DEPS
     "com.google.firebase:firebase-storage:21.0.0"
-    "com.google.firebase:firebase-analytics:22.0.0"
+    "com.google.firebase:firebase-analytics:22.0.2"
 )
diff --git a/cmake/firebase_unity_version.cmake b/cmake/firebase_unity_version.cmake
index 8d49ff83..d35d5fed 100644
--- a/cmake/firebase_unity_version.cmake
+++ b/cmake/firebase_unity_version.cmake
@@ -14,20 +14,20 @@
 
 # This file defines the version numbers used by the Firebase Unity SDK.
 
-set(FIREBASE_UNITY_SDK_VERSION "12.0.0"
+set(FIREBASE_UNITY_SDK_VERSION "12.1.0"
     CACHE STRING "The version of the Unity SDK, used in the names of files.")
 
-set(FIREBASE_IOS_POD_VERSION "10.25.0"
+set(FIREBASE_IOS_POD_VERSION "10.28.1"
     CACHE STRING "The version of the top-level Firebase Cocoapod to use.")
 
 # https://github.com/googlesamples/unity-jar-resolver
-set(FIREBASE_UNITY_JAR_RESOLVER_VERSION "1.2.179"
+set(FIREBASE_UNITY_JAR_RESOLVER_VERSION "1.2.181"
    CACHE STRING
   "Version tag of Play Services Resolver to download and use (no trailing .0)"
 )
 
 # https://github.com/firebase/firebase-cpp-sdk
-set(FIREBASE_CPP_SDK_PRESET_VERSION "v12.0.0"
+set(FIREBASE_CPP_SDK_PRESET_VERSION "v12.1.0"
    CACHE STRING
   "Version tag of Firebase CPP SDK to download (if no local or not passed in) and use (no trailing .0)"
 )
diff --git a/docs/readme.md b/docs/readme.md
index 3221a612..159cb2d6 100644
--- a/docs/readme.md
+++ b/docs/readme.md
@@ -71,11 +71,21 @@ Support
 
 Release Notes
 -------------
-### Upcoming
+### 12.1.0
 - Changes
+    - General: Update to Firebase C++ SDK version 12.1.0.
+    - General (Android): Update to Firebase Android BoM version 33.1.1.
+    - General (iOS): Update to Firebase Cocoapods version 10.28.1.
+    - General: Update to EDM4U version 1.2.181.
     - Analytics (iOS): Add support for
       `InitiateOnDeviceConversionMeasurementWithHashedEmailAddress` and
       `InitiateOnDeviceConversionMeasurementWithHashedPhoneNumber`.
+    - Messaging (Android): Fixed a potential race condition on receiving
+      messages after cleanup.
+      ([#1030](https://github.com/firebase/firebase-unity-sdk/issues/1030)).
+    - Messaging (iOS): Fixed an issue with notifications being lost if they
+      were received before Firebase Messaging was initialized.
+      ([#377](https://github.com/firebase/firebase-unity-sdk/issues/377)).
 
 ### 12.0.0
 - Changes
diff --git a/unity_packer/guids.json b/unity_packer/guids.json
index 069e1451..7347cafa 100644
--- a/unity_packer/guids.json
+++ b/unity_packer/guids.json
@@ -1130,6 +1130,49 @@
         "Firebase/m2repository/com/google/firebase/firebase-storage-unity/12.0.0/firebase-storage-unity-12.0.0.pom": "3d88a456d2be444da7deada87f19d502",
         "Firebase/m2repository/com/google/firebase/firebase-storage-unity/12.0.0/firebase-storage-unity-12.0.0.srcaar": "8096b403f95146ce8d66a4fd71d39dfc"
     },
+    "12.1.0": {
+        "Firebase/Editor/FirebaseAnalytics_version-12.1.0_manifest.txt": "a4be5203a9fc4a898619c106029e133f",
+        "Firebase/Editor/FirebaseAppCheck_version-12.1.0_manifest.txt": "91c23bb8402042e39dbec64526973dec",
+        "Firebase/Editor/FirebaseAuth_version-12.1.0_manifest.txt": "ffe380bcbc974e429ddc836472034d69",
+        "Firebase/Editor/FirebaseCrashlytics_version-12.1.0_manifest.txt": "68c6823d7cc348e0b82faef62ba63393",
+        "Firebase/Editor/FirebaseDatabase_version-12.1.0_manifest.txt": "31d1268e97284b9495ab04742957b95e",
+        "Firebase/Editor/FirebaseDynamicLinks_version-12.1.0_manifest.txt": "e2e0c56e4a26440188bbe3244d2e504d",
+        "Firebase/Editor/FirebaseFirestore_version-12.1.0_manifest.txt": "271fcfafaebb4b9f97c3541ce01a9e49",
+        "Firebase/Editor/FirebaseFunctions_version-12.1.0_manifest.txt": "1cc73ea20cb843db889313660ce7ff1c",
+        "Firebase/Editor/FirebaseInstallations_version-12.1.0_manifest.txt": "519c784b3ca245f9ab0aa95e1cf94ca1",
+        "Firebase/Editor/FirebaseMessaging_version-12.1.0_manifest.txt": "335bdd1845c743dda25d1773b725590a",
+        "Firebase/Editor/FirebaseRemoteConfig_version-12.1.0_manifest.txt": "97270a8b058444309e88e22cd6a9c3b6",
+        "Firebase/Editor/FirebaseStorage_version-12.1.0_manifest.txt": "82e6092c33db44ada08b5cfcc72eec95",
+        "Firebase/Plugins/x86_64/FirebaseCppApp-12_1_0.bundle": "641b9c94e57d4258994035bf1e6a8e9f",
+        "Firebase/Plugins/x86_64/FirebaseCppApp-12_1_0.dll": "ad5d593406854a5a9222075b5b5ad210",
+        "Firebase/Plugins/x86_64/FirebaseCppApp-12_1_0.so": "1c395439e78945a9b2b5d9af1252676e",
+        "Firebase/m2repository/com/google/firebase/firebase-analytics-unity/12.1.0/firebase-analytics-unity-12.1.0.pom": "3fdc4e15d2014c0b8ec1bc3f5bc1103f",
+        "Firebase/m2repository/com/google/firebase/firebase-analytics-unity/12.1.0/firebase-analytics-unity-12.1.0.srcaar": "1c14100b5ef243fdba06626ea4dae097",
+        "Firebase/m2repository/com/google/firebase/firebase-app-unity/12.1.0/firebase-app-unity-12.1.0.pom": "3fa35f47fc594d579e04aff3e6971256",
+        "Firebase/m2repository/com/google/firebase/firebase-app-unity/12.1.0/firebase-app-unity-12.1.0.srcaar": "afe52f3a62954edcb74226ae077029ad",
+        "Firebase/m2repository/com/google/firebase/firebase-appcheck-unity/12.1.0/firebase-appcheck-unity-12.1.0.pom": "469bdf42544c4f31b2c8e674e43fe46a",
+        "Firebase/m2repository/com/google/firebase/firebase-appcheck-unity/12.1.0/firebase-appcheck-unity-12.1.0.srcaar": "0b8560378e094c1994cba001c2e6ba00",
+        "Firebase/m2repository/com/google/firebase/firebase-auth-unity/12.1.0/firebase-auth-unity-12.1.0.pom": "9d88572b5a1f4aa79713804fb8808257",
+        "Firebase/m2repository/com/google/firebase/firebase-auth-unity/12.1.0/firebase-auth-unity-12.1.0.srcaar": "c4fb4b5afa2843e9a28554cbee26ab0d",
+        "Firebase/m2repository/com/google/firebase/firebase-config-unity/12.1.0/firebase-config-unity-12.1.0.pom": "9b32003b8ff94f1fbb976c988650a683",
+        "Firebase/m2repository/com/google/firebase/firebase-config-unity/12.1.0/firebase-config-unity-12.1.0.srcaar": "61f0b260c8d944c59f404eb6a7c9b1d9",
+        "Firebase/m2repository/com/google/firebase/firebase-crashlytics-unity/12.1.0/firebase-crashlytics-unity-12.1.0.pom": "d01b3def50d148e798ab01b6eeeed7ad",
+        "Firebase/m2repository/com/google/firebase/firebase-crashlytics-unity/12.1.0/firebase-crashlytics-unity-12.1.0.srcaar": "d578940f1a1743db9e2379eab68359bf",
+        "Firebase/m2repository/com/google/firebase/firebase-database-unity/12.1.0/firebase-database-unity-12.1.0.pom": "b4b02020ab834c37b59f055d3a86e0c1",
+        "Firebase/m2repository/com/google/firebase/firebase-database-unity/12.1.0/firebase-database-unity-12.1.0.srcaar": "b7fb0d24a0c448bfbe95aab9c09d7239",
+        "Firebase/m2repository/com/google/firebase/firebase-dynamic-links-unity/12.1.0/firebase-dynamic-links-unity-12.1.0.pom": "7b4fbba640014604a5a17e6577356ab0",
+        "Firebase/m2repository/com/google/firebase/firebase-dynamic-links-unity/12.1.0/firebase-dynamic-links-unity-12.1.0.srcaar": "93f039a2eac84b4dada94d3b816bb634",
+        "Firebase/m2repository/com/google/firebase/firebase-firestore-unity/12.1.0/firebase-firestore-unity-12.1.0.pom": "f86cb9cdcf674484a55e4504a972180f",
+        "Firebase/m2repository/com/google/firebase/firebase-firestore-unity/12.1.0/firebase-firestore-unity-12.1.0.srcaar": "26b2058eefdc4d29895243e78e6fc559",
+        "Firebase/m2repository/com/google/firebase/firebase-functions-unity/12.1.0/firebase-functions-unity-12.1.0.pom": "f212ab5035694b76a49fbb127d8d3c7e",
+        "Firebase/m2repository/com/google/firebase/firebase-functions-unity/12.1.0/firebase-functions-unity-12.1.0.srcaar": "f7724fa10689450a9988d8749d282411",
+        "Firebase/m2repository/com/google/firebase/firebase-installations-unity/12.1.0/firebase-installations-unity-12.1.0.pom": "cff02a2936d94500b357330caa6cf219",
+        "Firebase/m2repository/com/google/firebase/firebase-installations-unity/12.1.0/firebase-installations-unity-12.1.0.srcaar": "ddf183205c2744329bdfb459db7b1b1b",
+        "Firebase/m2repository/com/google/firebase/firebase-messaging-unity/12.1.0/firebase-messaging-unity-12.1.0.pom": "f9c0e710c0f54ef685a2869ed4690b49",
+        "Firebase/m2repository/com/google/firebase/firebase-messaging-unity/12.1.0/firebase-messaging-unity-12.1.0.srcaar": "b8759d00e13b46538c71e2666d2842b7",
+        "Firebase/m2repository/com/google/firebase/firebase-storage-unity/12.1.0/firebase-storage-unity-12.1.0.pom": "8f47ce58e49a4898a22af7230ed80d62",
+        "Firebase/m2repository/com/google/firebase/firebase-storage-unity/12.1.0/firebase-storage-unity-12.1.0.srcaar": "06edba59f2a343ea8e82e95759ed76c8"
+    },
     "3.0.0": {
         "Firebase/Editor/FirebaseAnalytics_v3.0.0_manifest.txt": "13c9ba8e35174de78ad7ca9a48cba9f0",
         "Firebase/Editor/FirebaseAuth_v3.0.0_manifest.txt": "eaa139bec35e491da653b612e67134ad",