diff --git a/packages/camera/camera_android/CHANGELOG.md b/packages/camera/camera_android/CHANGELOG.md
index 661cafd3bb8f..91bd0fbe9a47 100644
--- a/packages/camera/camera_android/CHANGELOG.md
+++ b/packages/camera/camera_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.10.6+2
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 0.10.6+1
 
 * Adds a namespace for compatibility with AGP 8.0.
diff --git a/packages/camera/camera_android/android/build.gradle b/packages/camera/camera_android/android/build.gradle
index 6b437709809a..53ac70561db3 100644
--- a/packages/camera/camera_android/android/build.gradle
+++ b/packages/camera/camera_android/android/build.gradle
@@ -27,7 +27,10 @@ project.getTasks().withType(JavaCompile){
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.camera'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.camera'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/camera/camera_android/pubspec.yaml b/packages/camera/camera_android/pubspec.yaml
index 2b7c0c29e280..9c4fc57336c7 100644
--- a/packages/camera/camera_android/pubspec.yaml
+++ b/packages/camera/camera_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: camera_android
 description: Android implementation of the camera plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/camera/camera_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+camera%22
-version: 0.10.6+1
+version: 0.10.6+2
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/camera/camera_android_camerax/android/build.gradle b/packages/camera/camera_android_camerax/android/build.gradle
index 1ae38c243a59..d056449de871 100644
--- a/packages/camera/camera_android_camerax/android/build.gradle
+++ b/packages/camera/camera_android_camerax/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.camerax'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.camerax'
+    }
     // CameraX dependencies require compilation against version 33 or later.
     compileSdkVersion 33
 
diff --git a/packages/espresso/CHANGELOG.md b/packages/espresso/CHANGELOG.md
index 7204107115f1..af45fb87c88e 100644
--- a/packages/espresso/CHANGELOG.md
+++ b/packages/espresso/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.0+4
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 0.3.0+3
 
 * Adds `targetCompatibilty` matching `sourceCompatibility` for older toolchains.
diff --git a/packages/espresso/android/build.gradle b/packages/espresso/android/build.gradle
index 034779a802ce..1d28a98c477b 100644
--- a/packages/espresso/android/build.gradle
+++ b/packages/espresso/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'com.example.espresso'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'com.example.espresso'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/espresso/pubspec.yaml b/packages/espresso/pubspec.yaml
index ef0d6dd56707..0dffbdb5a1e9 100644
--- a/packages/espresso/pubspec.yaml
+++ b/packages/espresso/pubspec.yaml
@@ -3,7 +3,7 @@ description: Java classes for testing Flutter apps using Espresso.
   Allows driving Flutter widgets from a native Espresso test.
 repository: https://github.com/flutter/packages/tree/main/packages/espresso
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+espresso%22
-version: 0.3.0+3
+version: 0.3.0+4
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/flutter_plugin_android_lifecycle/CHANGELOG.md b/packages/flutter_plugin_android_lifecycle/CHANGELOG.md
index ca354c8fd91b..1e1e0316a471 100644
--- a/packages/flutter_plugin_android_lifecycle/CHANGELOG.md
+++ b/packages/flutter_plugin_android_lifecycle/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.0.13
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 2.0.12
 
 * Adds `targetCompatibilty` matching `sourceCompatibility` for older toolchains.
diff --git a/packages/flutter_plugin_android_lifecycle/android/build.gradle b/packages/flutter_plugin_android_lifecycle/android/build.gradle
index 1203eb36dc62..5a1933069cc1 100644
--- a/packages/flutter_plugin_android_lifecycle/android/build.gradle
+++ b/packages/flutter_plugin_android_lifecycle/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.flutter_plugin_android_lifecycle'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.flutter_plugin_android_lifecycle'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/flutter_plugin_android_lifecycle/pubspec.yaml b/packages/flutter_plugin_android_lifecycle/pubspec.yaml
index d76dabdcdb1c..fd111c234da3 100644
--- a/packages/flutter_plugin_android_lifecycle/pubspec.yaml
+++ b/packages/flutter_plugin_android_lifecycle/pubspec.yaml
@@ -2,7 +2,7 @@ name: flutter_plugin_android_lifecycle
 description: Flutter plugin for accessing an Android Lifecycle within other plugins.
 repository: https://github.com/flutter/packages/tree/main/packages/flutter_plugin_android_lifecycle
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+flutter_plugin_android_lifecycle%22
-version: 2.0.12
+version: 2.0.13
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md b/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md
index 0e91f2df16a4..c61f15671de1 100644
--- a/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md
+++ b/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.4.13
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 2.4.12
 
 * Fixes Java warnings.
diff --git a/packages/google_maps_flutter/google_maps_flutter_android/android/build.gradle b/packages/google_maps_flutter/google_maps_flutter_android/android/build.gradle
index 35ba28401859..42e05a7fdc48 100644
--- a/packages/google_maps_flutter/google_maps_flutter_android/android/build.gradle
+++ b/packages/google_maps_flutter/google_maps_flutter_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.googlemaps'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.googlemaps'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml b/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml
index 03914708dcfd..71ba77407625 100644
--- a/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml
+++ b/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: google_maps_flutter_android
 description: Android implementation of the google_maps_flutter plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_maps_flutter/google_maps_flutter_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
-version: 2.4.12
+version: 2.4.13
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/google_sign_in/google_sign_in_android/CHANGELOG.md b/packages/google_sign_in/google_sign_in_android/CHANGELOG.md
index d9082a6b948d..7aeafc1a0f01 100644
--- a/packages/google_sign_in/google_sign_in_android/CHANGELOG.md
+++ b/packages/google_sign_in/google_sign_in_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 6.1.14
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 6.1.13
 
 * Adds `targetCompatibilty` matching `sourceCompatibility` for older toolchains.
diff --git a/packages/google_sign_in/google_sign_in_android/android/build.gradle b/packages/google_sign_in/google_sign_in_android/android/build.gradle
index 72c383ca7b4e..e48223dd7e7c 100644
--- a/packages/google_sign_in/google_sign_in_android/android/build.gradle
+++ b/packages/google_sign_in/google_sign_in_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.googlesignin'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.googlesignin'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/google_sign_in/google_sign_in_android/pubspec.yaml b/packages/google_sign_in/google_sign_in_android/pubspec.yaml
index 1ff448e18fa3..73904741a401 100644
--- a/packages/google_sign_in/google_sign_in_android/pubspec.yaml
+++ b/packages/google_sign_in/google_sign_in_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: google_sign_in_android
 description: Android implementation of the google_sign_in plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_sign_in/google_sign_in_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+google_sign_in%22
-version: 6.1.13
+version: 6.1.14
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/image_picker/image_picker_android/CHANGELOG.md b/packages/image_picker/image_picker_android/CHANGELOG.md
index 51281722190b..44902aa169ff 100644
--- a/packages/image_picker/image_picker_android/CHANGELOG.md
+++ b/packages/image_picker/image_picker_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.8.6+9
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 0.8.6+8
 
 * Adds a namespace for compatibility with AGP 8.0.
diff --git a/packages/image_picker/image_picker_android/android/build.gradle b/packages/image_picker/image_picker_android/android/build.gradle
index 777a4e4676c6..08b4bb3b4d05 100644
--- a/packages/image_picker/image_picker_android/android/build.gradle
+++ b/packages/image_picker/image_picker_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.imagepicker'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.imagepicker'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/image_picker/image_picker_android/pubspec.yaml b/packages/image_picker/image_picker_android/pubspec.yaml
index 349cacc8b352..e95d14c84c9f 100755
--- a/packages/image_picker/image_picker_android/pubspec.yaml
+++ b/packages/image_picker/image_picker_android/pubspec.yaml
@@ -3,7 +3,7 @@ description: Android implementation of the image_picker plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/image_picker/image_picker_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+image_picker%22
 
-version: 0.8.6+8
+version: 0.8.6+9
 
 environment:
   sdk: ">=2.18.0 <4.0.0"
diff --git a/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md b/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
index 1348347fda76..8f1131b388f6 100644
--- a/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
+++ b/packages/in_app_purchase/in_app_purchase_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.2.5+4
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 0.2.5+3
 
 * Updates com.android.billingclient:billing from 5.1.0 to 5.2.0.
diff --git a/packages/in_app_purchase/in_app_purchase_android/android/build.gradle b/packages/in_app_purchase/in_app_purchase_android/android/build.gradle
index 2892be27936d..94acf3a86551 100644
--- a/packages/in_app_purchase/in_app_purchase_android/android/build.gradle
+++ b/packages/in_app_purchase/in_app_purchase_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.inapppurchase'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.inapppurchase'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml b/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
index f81311196096..96426db8a932 100644
--- a/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
+++ b/packages/in_app_purchase/in_app_purchase_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: in_app_purchase_android
 description: An implementation for the Android platform of the Flutter `in_app_purchase` plugin. This uses the Android BillingClient APIs.
 repository: https://github.com/flutter/packages/tree/main/packages/in_app_purchase/in_app_purchase_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+in_app_purchase%22
-version: 0.2.5+3
+version: 0.2.5+4
 
 environment:
   sdk: ">=2.18.0 <4.0.0"
diff --git a/packages/local_auth/local_auth_android/CHANGELOG.md b/packages/local_auth/local_auth_android/CHANGELOG.md
index 1f651323ddf8..6752fc53d061 100644
--- a/packages/local_auth/local_auth_android/CHANGELOG.md
+++ b/packages/local_auth/local_auth_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.27
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 1.0.26
 
 * Adds `targetCompatibilty` matching `sourceCompatibility` for older toolchains.
diff --git a/packages/local_auth/local_auth_android/android/build.gradle b/packages/local_auth/local_auth_android/android/build.gradle
index a212f23d6f21..6c1dc9c17611 100644
--- a/packages/local_auth/local_auth_android/android/build.gradle
+++ b/packages/local_auth/local_auth_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.localauth'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.localauth'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/local_auth/local_auth_android/pubspec.yaml b/packages/local_auth/local_auth_android/pubspec.yaml
index d9cf8df4bac2..a1843ec40c7f 100644
--- a/packages/local_auth/local_auth_android/pubspec.yaml
+++ b/packages/local_auth/local_auth_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: local_auth_android
 description: Android implementation of the local_auth plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/local_auth/local_auth_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+local_auth%22
-version: 1.0.26
+version: 1.0.27
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/path_provider/path_provider_android/CHANGELOG.md b/packages/path_provider/path_provider_android/CHANGELOG.md
index 660b3fa54986..5f5514198164 100644
--- a/packages/path_provider/path_provider_android/CHANGELOG.md
+++ b/packages/path_provider/path_provider_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.0.27
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 2.0.26
 
 * Adds a namespace for compatibility with AGP 8.0.
diff --git a/packages/path_provider/path_provider_android/android/build.gradle b/packages/path_provider/path_provider_android/android/build.gradle
index 09b407a5363d..0cdb3d00eaed 100644
--- a/packages/path_provider/path_provider_android/android/build.gradle
+++ b/packages/path_provider/path_provider_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.pathprovider'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.pathprovider'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/path_provider/path_provider_android/pubspec.yaml b/packages/path_provider/path_provider_android/pubspec.yaml
index 95300b1f612f..f22706b08a7d 100644
--- a/packages/path_provider/path_provider_android/pubspec.yaml
+++ b/packages/path_provider/path_provider_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: path_provider_android
 description: Android implementation of the path_provider plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/path_provider/path_provider_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+path_provider%22
-version: 2.0.26
+version: 2.0.27
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/pigeon/platform_tests/alternate_language_test_plugin/android/build.gradle b/packages/pigeon/platform_tests/alternate_language_test_plugin/android/build.gradle
index 8f4a155fd666..a6a50278f9f4 100644
--- a/packages/pigeon/platform_tests/alternate_language_test_plugin/android/build.gradle
+++ b/packages/pigeon/platform_tests/alternate_language_test_plugin/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'com.example.alternate_language_test_plugin'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'com.example.alternate_language_test_plugin'
+    }
     compileSdkVersion 33
 
     compileOptions {
diff --git a/packages/pigeon/platform_tests/test_plugin/android/build.gradle b/packages/pigeon/platform_tests/test_plugin/android/build.gradle
index 6ee629bf6c9c..e99796f68824 100644
--- a/packages/pigeon/platform_tests/test_plugin/android/build.gradle
+++ b/packages/pigeon/platform_tests/test_plugin/android/build.gradle
@@ -25,7 +25,10 @@ apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 
 android {
-    namespace 'com.example.test_plugin'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'com.example.test_plugin'
+    }
     compileSdkVersion 33
 
     compileOptions {
diff --git a/packages/quick_actions/quick_actions_android/CHANGELOG.md b/packages/quick_actions/quick_actions_android/CHANGELOG.md
index 3187f6aaebb2..32a0fa16d40b 100644
--- a/packages/quick_actions/quick_actions_android/CHANGELOG.md
+++ b/packages/quick_actions/quick_actions_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.4
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 1.0.3
 
 * Adds a namespace for compatibility with AGP 8.0.
diff --git a/packages/quick_actions/quick_actions_android/android/build.gradle b/packages/quick_actions/quick_actions_android/android/build.gradle
index 935c5176c27e..71bd5b2d6d21 100644
--- a/packages/quick_actions/quick_actions_android/android/build.gradle
+++ b/packages/quick_actions/quick_actions_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.quickactions'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.quickactions'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/quick_actions/quick_actions_android/pubspec.yaml b/packages/quick_actions/quick_actions_android/pubspec.yaml
index ca16d8bda96d..65f71d6b157d 100644
--- a/packages/quick_actions/quick_actions_android/pubspec.yaml
+++ b/packages/quick_actions/quick_actions_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: quick_actions_android
 description: An implementation for the Android platform of the Flutter `quick_actions` plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/quick_actions/quick_actions_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+in_app_purchase%22
-version: 1.0.3
+version: 1.0.4
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/shared_preferences/shared_preferences_android/CHANGELOG.md b/packages/shared_preferences/shared_preferences_android/CHANGELOG.md
index a14bc1d7fe65..e901898e9421 100644
--- a/packages/shared_preferences/shared_preferences_android/CHANGELOG.md
+++ b/packages/shared_preferences/shared_preferences_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.1.4
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 2.1.3
 
 * Adds a namespace for compatibility with AGP 8.0.
diff --git a/packages/shared_preferences/shared_preferences_android/android/build.gradle b/packages/shared_preferences/shared_preferences_android/android/build.gradle
index 4469e49bf73d..f3074dd3adc5 100644
--- a/packages/shared_preferences/shared_preferences_android/android/build.gradle
+++ b/packages/shared_preferences/shared_preferences_android/android/build.gradle
@@ -30,7 +30,10 @@ allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.sharedpreferences'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.sharedpreferences'
+    }
     compileSdkVersion 33
 
     compileOptions {
diff --git a/packages/shared_preferences/shared_preferences_android/pubspec.yaml b/packages/shared_preferences/shared_preferences_android/pubspec.yaml
index e9381f4d16c0..b8d240a78265 100644
--- a/packages/shared_preferences/shared_preferences_android/pubspec.yaml
+++ b/packages/shared_preferences/shared_preferences_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: shared_preferences_android
 description: Android implementation of the shared_preferences plugin
 repository: https://github.com/flutter/packages/tree/main/packages/shared_preferences/shared_preferences_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+shared_preferences%22
-version: 2.1.3
+version: 2.1.4
 
 environment:
   sdk: ">=2.17.0 <4.0.0"
diff --git a/packages/url_launcher/url_launcher_android/CHANGELOG.md b/packages/url_launcher/url_launcher_android/CHANGELOG.md
index fdf4eb91f243..aa82c4beff45 100644
--- a/packages/url_launcher/url_launcher_android/CHANGELOG.md
+++ b/packages/url_launcher/url_launcher_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 6.0.31
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 6.0.30
 
 * Adds `targetCompatibilty` matching `sourceCompatibility` for older toolchains.
diff --git a/packages/url_launcher/url_launcher_android/android/build.gradle b/packages/url_launcher/url_launcher_android/android/build.gradle
index e0c2fc6a7b87..3344266b6b37 100644
--- a/packages/url_launcher/url_launcher_android/android/build.gradle
+++ b/packages/url_launcher/url_launcher_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.urllauncher'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.urllauncher'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/url_launcher/url_launcher_android/pubspec.yaml b/packages/url_launcher/url_launcher_android/pubspec.yaml
index cf35a0b73944..73a427da9dad 100644
--- a/packages/url_launcher/url_launcher_android/pubspec.yaml
+++ b/packages/url_launcher/url_launcher_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: url_launcher_android
 description: Android implementation of the url_launcher plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/url_launcher/url_launcher_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+url_launcher%22
-version: 6.0.30
+version: 6.0.31
 
 environment:
   sdk: ">=2.18.0 <4.0.0"
diff --git a/packages/video_player/video_player_android/CHANGELOG.md b/packages/video_player/video_player_android/CHANGELOG.md
index 3a60162d2af0..a204cb2c6e1c 100644
--- a/packages/video_player/video_player_android/CHANGELOG.md
+++ b/packages/video_player/video_player_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.4.6
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 2.4.5
 
 * Adds a namespace for compatibility with AGP 8.0.
diff --git a/packages/video_player/video_player_android/android/build.gradle b/packages/video_player/video_player_android/android/build.gradle
index 0facb26f51ba..613b8ed3c298 100644
--- a/packages/video_player/video_player_android/android/build.gradle
+++ b/packages/video_player/video_player_android/android/build.gradle
@@ -27,7 +27,10 @@ project.getTasks().withType(JavaCompile){
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.videoplayer'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.videoplayer'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/video_player/video_player_android/pubspec.yaml b/packages/video_player/video_player_android/pubspec.yaml
index 7940829efa5c..dc195b440761 100644
--- a/packages/video_player/video_player_android/pubspec.yaml
+++ b/packages/video_player/video_player_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: video_player_android
 description: Android implementation of the video_player plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/video_player/video_player_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+video_player%22
-version: 2.4.5
+version: 2.4.6
 
 environment:
   sdk: ">=2.18.0 <4.0.0"
diff --git a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
index 137f882349e1..02edbab2f67e 100644
--- a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
+++ b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 3.6.2
+
+* Fixes compatibility with AGP versions older than 4.2.
+
 ## 3.6.1
 
 * Adds a namespace for compatibility with AGP 8.0.
diff --git a/packages/webview_flutter/webview_flutter_android/android/build.gradle b/packages/webview_flutter/webview_flutter_android/android/build.gradle
index 13eff1a9bed2..f3da461ec55f 100644
--- a/packages/webview_flutter/webview_flutter_android/android/build.gradle
+++ b/packages/webview_flutter/webview_flutter_android/android/build.gradle
@@ -22,7 +22,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    namespace 'io.flutter.plugins.webviewflutter'
+    // Conditional for compatibility with AGP <4.2.
+    if (project.android.hasProperty("namespace")) {
+        namespace 'io.flutter.plugins.webviewflutter'
+    }
     compileSdkVersion 33
 
     defaultConfig {
diff --git a/packages/webview_flutter/webview_flutter_android/pubspec.yaml b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
index 94105ff3b440..8196b3ba50c8 100644
--- a/packages/webview_flutter/webview_flutter_android/pubspec.yaml
+++ b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
@@ -2,7 +2,7 @@ name: webview_flutter_android
 description: A Flutter plugin that provides a WebView widget on Android.
 repository: https://github.com/flutter/packages/tree/main/packages/webview_flutter/webview_flutter_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 3.6.1
+version: 3.6.2
 
 environment:
   sdk: ">=2.18.0 <4.0.0"
diff --git a/script/tool/lib/src/gradle_check_command.dart b/script/tool/lib/src/gradle_check_command.dart
index a3a1e7607db2..09a9d7a55f22 100644
--- a/script/tool/lib/src/gradle_check_command.dart
+++ b/script/tool/lib/src/gradle_check_command.dart
@@ -153,13 +153,32 @@ class GradleCheckCommand extends PackageLoopingCommand {
         RegExp('^\\s*namespace\\s+[\'"](.*?)[\'"]', multiLine: true);
     final RegExpMatch? namespaceMatch =
         namespaceRegex.firstMatch(gradleContents);
-    if (namespaceMatch == null) {
-      const String errorMessage = '''
-build.gradle must set a "namespace":
 
+    // For plugins, make sure the namespace is conditionalized so that it
+    // doesn't break client apps using AGP 4.1 and earlier (which don't have
+    // a namespace property, and will fail to build if it's set).
+    const String namespaceConditional =
+        'if (project.android.hasProperty("namespace"))';
+    String exampleSetNamespace = "namespace 'dev.flutter.foo'";
+    if (!isExample) {
+      exampleSetNamespace = '''
+$namespaceConditional {
+    $exampleSetNamespace
+}''';
+    }
+    // Wrap the namespace command in an `android` block, adding the indentation
+    // to make it line up correctly.
+    final String exampleAndroidNamespaceBlock = '''
     android {
-        namespace 'dev.flutter.foo'
+        ${exampleSetNamespace.split('\n').join('\n        ')}
     }
+''';
+
+    if (namespaceMatch == null) {
+      final String errorMessage = '''
+build.gradle must set a "namespace":
+
+$exampleAndroidNamespaceBlock
 
 The value must match the "package" attribute in AndroidManifest.xml, if one is
 present. For more information, see:
@@ -170,6 +189,18 @@ https://developer.android.com/build/publish-library/prep-lib-release#choose-name
           '$indentation${errorMessage.split('\n').join('\n$indentation')}');
       return false;
     } else {
+      if (!isExample && !gradleContents.contains(namespaceConditional)) {
+        final String errorMessage = '''
+build.gradle for a plugin must conditionalize "namespace":
+
+$exampleAndroidNamespaceBlock
+''';
+
+        printError(
+            '$indentation${errorMessage.split('\n').join('\n$indentation')}');
+        return false;
+      }
+
       return _validateNamespaceMatchesManifest(package,
           isExample: isExample, namespace: namespaceMatch.group(1)!);
     }
diff --git a/script/tool/test/gradle_check_command_test.dart b/script/tool/test/gradle_check_command_test.dart
index e72d3f8f1dbb..68581c7a639a 100644
--- a/script/tool/test/gradle_check_command_test.dart
+++ b/script/tool/test/gradle_check_command_test.dart
@@ -41,6 +41,7 @@ void main() {
     bool includeTargetCompat = false,
     bool commentSourceLanguage = false,
     bool includeNamespace = true,
+    bool conditionalizeNamespace = true,
     bool commentNamespace = false,
     bool warningsConfigured = true,
   }) {
@@ -69,8 +70,15 @@ java {
         '${commentSourceLanguage ? '// ' : ''}sourceCompatibility JavaVersion.VERSION_1_8';
     final String targetCompat =
         '${commentSourceLanguage ? '// ' : ''}targetCompatibility JavaVersion.VERSION_1_8';
-    final String namespace =
-        "${commentNamespace ? '// ' : ''}namespace '$_defaultFakeNamespace'";
+    String namespace =
+        "    ${commentNamespace ? '// ' : ''}namespace '$_defaultFakeNamespace'";
+    if (conditionalizeNamespace) {
+      namespace = '''
+    if (project.android.hasProperty("namespace")) {
+    $namespace
+    }
+''';
+    }
 
     buildGradle.writeAsStringSync('''
 group 'dev.flutter.plugins.fake'
@@ -87,7 +95,7 @@ apply plugin: 'com.android.library'
 
 ${includeLanguageVersion ? javaSection : ''}
 android {
-    ${includeNamespace ? namespace : ''}
+${includeNamespace ? namespace : ''}
     compileSdkVersion 33
 
     defaultConfig {
@@ -435,6 +443,28 @@ dependencies {
     );
   });
 
+  test('fails when plugin namespace is not conditional', () async {
+    final RepositoryPackage package =
+        createFakePlugin('a_plugin', packagesDir, examples: <String>[]);
+    writeFakePluginBuildGradle(package,
+        includeLanguageVersion: true, conditionalizeNamespace: false);
+    writeFakeManifest(package);
+
+    Error? commandError;
+    final List<String> output = await runCapturingPrint(
+        runner, <String>['gradle-check'], errorHandler: (Error e) {
+      commandError = e;
+    });
+
+    expect(commandError, isA<ToolExit>());
+    expect(
+      output,
+      containsAllInOrder(<Matcher>[
+        contains('build.gradle for a plugin must conditionalize "namespace"'),
+      ]),
+    );
+  });
+
   test('fails when namespace is missing', () async {
     final RepositoryPackage package =
         createFakePlugin('a_plugin', packagesDir, examples: <String>[]);