diff --git a/analytics/testapp/ProjectSettings/ProjectSettings.asset b/analytics/testapp/ProjectSettings/ProjectSettings.asset
index 659c180fb..183f36f77 100644
--- a/analytics/testapp/ProjectSettings/ProjectSettings.asset
+++ b/analytics/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/app_check/testapp/ProjectSettings/ProjectSettings.asset b/app_check/testapp/ProjectSettings/ProjectSettings.asset
index 34e65961e..dd7aa516c 100644
--- a/app_check/testapp/ProjectSettings/ProjectSettings.asset
+++ b/app_check/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/auth/testapp/ProjectSettings/ProjectSettings.asset b/auth/testapp/ProjectSettings/ProjectSettings.asset
index 1349ff689..cbab014e9 100644
--- a/auth/testapp/ProjectSettings/ProjectSettings.asset
+++ b/auth/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/cmake/play_services_resolver_deps.cmake b/cmake/play_services_resolver_deps.cmake
index 895d12e55..bf8808a0a 100644
--- a/cmake/play_services_resolver_deps.cmake
+++ b/cmake/play_services_resolver_deps.cmake
@@ -20,7 +20,7 @@
 set(DEPENDENCIES_TEMPLATE ${CMAKE_CURRENT_LIST_DIR}/dependencies.template)
 
 # The default minimum target SDK to use.
-set(DEFAULT_MIN_TARGET_SDK "13.0")
+set(DEFAULT_MIN_TARGET_SDK "15.0")
 
 
 # A function that generates the <module>Dependencies.xml file, used by the
diff --git a/crashlytics/testapp/ProjectSettings/ProjectSettings.asset b/crashlytics/testapp/ProjectSettings/ProjectSettings.asset
index 23bff7b57..5dd4e786a 100644
--- a/crashlytics/testapp/ProjectSettings/ProjectSettings.asset
+++ b/crashlytics/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/database/testapp/ProjectSettings/ProjectSettings.asset b/database/testapp/ProjectSettings/ProjectSettings.asset
index aaec72ebf..202c4f10b 100644
--- a/database/testapp/ProjectSettings/ProjectSettings.asset
+++ b/database/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/docs/readme.md b/docs/readme.md
index 69ad84384..ce0fe4688 100644
--- a/docs/readme.md
+++ b/docs/readme.md
@@ -111,6 +111,7 @@ Release Notes
 -------------
 ### Upcoming
 -   Changes
+    - General (iOS, tvOS): Minimum iOS and tvOS deployment target is now 15.0.
     - Analytics: Removed deprecated `FirebaseAnalytics.ParameterGroupId`
       and `Parameter.Dispose` methods.
     - Auth: Removed deprecated `FirebaseUser.UpdateEmailAsync`.
diff --git a/firebaseai/testapp/ProjectSettings/ProjectSettings.asset b/firebaseai/testapp/ProjectSettings/ProjectSettings.asset
index a302682d4..703598a8d 100644
--- a/firebaseai/testapp/ProjectSettings/ProjectSettings.asset
+++ b/firebaseai/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/firestore/testapp/ProjectSettings/ProjectSettings.asset b/firestore/testapp/ProjectSettings/ProjectSettings.asset
index c43578458..1597ca045 100644
--- a/firestore/testapp/ProjectSettings/ProjectSettings.asset
+++ b/firestore/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/functions/testapp/ProjectSettings/ProjectSettings.asset b/functions/testapp/ProjectSettings/ProjectSettings.asset
index 39f30fe41..336a822c3 100644
--- a/functions/testapp/ProjectSettings/ProjectSettings.asset
+++ b/functions/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/installations/testapp/ProjectSettings/ProjectSettings.asset b/installations/testapp/ProjectSettings/ProjectSettings.asset
index 3d168f693..e99cdad31 100644
--- a/installations/testapp/ProjectSettings/ProjectSettings.asset
+++ b/installations/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/messaging/testapp/ProjectSettings/ProjectSettings.asset b/messaging/testapp/ProjectSettings/ProjectSettings.asset
index 58dc5cf0d..f4c85beff 100644
--- a/messaging/testapp/ProjectSettings/ProjectSettings.asset
+++ b/messaging/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/remote_config/testapp/ProjectSettings/ProjectSettings.asset b/remote_config/testapp/ProjectSettings/ProjectSettings.asset
index b2155e5dc..b3010ceba 100644
--- a/remote_config/testapp/ProjectSettings/ProjectSettings.asset
+++ b/remote_config/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1
diff --git a/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj b/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj
index ee15830f3..9df291df7 100644
--- a/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj
+++ b/scripts/gha/integration_testing/gameloop_apple/gameloop.xcodeproj/project.pbxproj
@@ -404,7 +404,7 @@
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 12.0;
+				TVOS_DEPLOYMENT_TARGET = 15.0;
 			};
 			name = Debug;
 		};
@@ -431,7 +431,7 @@
 				SWIFT_EMIT_LOC_STRINGS = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 12.0;
+				TVOS_DEPLOYMENT_TARGET = 15.0;
 			};
 			name = Release;
 		};
@@ -454,7 +454,7 @@
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TEST_TARGET_NAME = gameloop_tvos;
-				TVOS_DEPLOYMENT_TARGET = 12.0;
+				TVOS_DEPLOYMENT_TARGET = 15.0;
 			};
 			name = Debug;
 		};
@@ -477,7 +477,7 @@
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TEST_TARGET_NAME = gameloop_tvos;
-				TVOS_DEPLOYMENT_TARGET = 12.0;
+				TVOS_DEPLOYMENT_TARGET = 15.0;
 			};
 			name = Release;
 		};
@@ -532,7 +532,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -587,7 +587,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = iphoneos;
@@ -603,7 +603,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_STYLE = Automatic;
 				INFOPLIST_FILE = gameloop/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -612,7 +612,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
-				TVOS_DEPLOYMENT_TARGET = 14.5;
+				TVOS_DEPLOYMENT_TARGET = 15.0;
 			};
 			name = Debug;
 		};
@@ -622,7 +622,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_STYLE = Automatic;
 				INFOPLIST_FILE = gameloop/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -631,7 +631,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
-				TVOS_DEPLOYMENT_TARGET = 14.5;
+				TVOS_DEPLOYMENT_TARGET = 15.0;
 			};
 			name = Release;
 		};
diff --git a/storage/testapp/ProjectSettings/ProjectSettings.asset b/storage/testapp/ProjectSettings/ProjectSettings.asset
index 152646135..e1e8dc152 100644
--- a/storage/testapp/ProjectSettings/ProjectSettings.asset
+++ b/storage/testapp/ProjectSettings/ProjectSettings.asset
@@ -184,10 +184,10 @@ PlayerSettings:
   StripUnusedMeshComponents: 0
   VertexChannelCompressionMask: 214
   iPhoneSdkVersion: 988
-  iOSTargetOSVersionString: 13.0
+  iOSTargetOSVersionString: 15.0
   tvOSSdkVersion: 0
   tvOSRequireExtendedGameController: 0
-  tvOSTargetOSVersionString: 13.0
+  tvOSTargetOSVersionString: 15.0
   uIPrerenderedIcon: 0
   uIRequiresPersistentWiFi: 0
   uIRequiresFullScreen: 1