diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index 0529b87..ceb873d 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-c6ea046c2cdaf3fb2428b31108eae3c3b1174e6e
+44e5b38ee83a1282981a30abc08ffcf6cd0e44bd
diff --git a/bin/internal/release-candidate-branch.version b/bin/internal/release-candidate-branch.version
new file mode 100644
index 0000000..fd2a018
--- /dev/null
+++ b/bin/internal/release-candidate-branch.version
@@ -0,0 +1 @@
+3.1.0
diff --git a/dev/conductor/core/lib/src/codesign.dart b/dev/conductor/core/lib/src/codesign.dart
index 271a5bc..eb52e5f 100644
--- a/dev/conductor/core/lib/src/codesign.dart
+++ b/dev/conductor/core/lib/src/codesign.dart
@@ -156,11 +156,8 @@
       'artifacts/engine/darwin-x64/gen_snapshot_arm64',
       'artifacts/engine/darwin-x64/gen_snapshot_x64',
       'artifacts/engine/ios-profile/gen_snapshot_arm64',
-      'artifacts/engine/ios-profile/gen_snapshot_armv7',
       'artifacts/engine/ios-release/gen_snapshot_arm64',
-      'artifacts/engine/ios-release/gen_snapshot_armv7',
       'artifacts/engine/ios/gen_snapshot_arm64',
-      'artifacts/engine/ios/gen_snapshot_armv7',
       'artifacts/libimobiledevice/idevicescreenshot',
       'artifacts/libimobiledevice/idevicesyslog',
       'artifacts/libimobiledevice/libimobiledevice-1.0.6.dylib',
diff --git a/packages/flutter_tools/lib/src/features.dart b/packages/flutter_tools/lib/src/features.dart
index f94f031..d595552 100644
--- a/packages/flutter_tools/lib/src/features.dart
+++ b/packages/flutter_tools/lib/src/features.dart
@@ -94,15 +94,17 @@
   name: 'support for desktop on macOS',
   configSetting: 'enable-macos-desktop',
   environmentOverride: 'FLUTTER_MACOS',
-  extraHelpText: 'Newer beta versions are available on the beta channel.',
   master: FeatureChannelSetting(
     available: true,
+    enabledByDefault: true,
   ),
   beta: FeatureChannelSetting(
     available: true,
+    enabledByDefault: true,
   ),
   stable: FeatureChannelSetting(
     available: true,
+    enabledByDefault: true,
   ),
 );
 
@@ -111,15 +113,17 @@
   name: 'support for desktop on Linux',
   configSetting: 'enable-linux-desktop',
   environmentOverride: 'FLUTTER_LINUX',
-  extraHelpText: 'Newer beta versions are available on the beta channel.',
   master: FeatureChannelSetting(
     available: true,
+    enabledByDefault: true,
   ),
   beta: FeatureChannelSetting(
     available: true,
+    enabledByDefault: true,
   ),
   stable: FeatureChannelSetting(
     available: true,
+    enabledByDefault: true,
   ),
 );
 
diff --git a/packages/flutter_tools/test/general.shard/features_test.dart b/packages/flutter_tools/test/general.shard/features_test.dart
index d8a460a..c8e2036 100644
--- a/packages/flutter_tools/test/general.shard/features_test.dart
+++ b/packages/flutter_tools/test/general.shard/features_test.dart
@@ -90,15 +90,13 @@
     testWithoutContext('Flutter macOS desktop help string', () {
       expect(flutterMacOSDesktopFeature.generateHelpMessage(),
       'Enable or disable support for desktop on macOS. '
-      'This setting will take effect on the master, beta, and stable channels. '
-      'Newer beta versions are available on the beta channel.');
+      'This setting will take effect on the master, beta, and stable channels.');
     });
 
     testWithoutContext('Flutter Linux desktop help string', () {
       expect(flutterLinuxDesktopFeature.generateHelpMessage(),
       'Enable or disable support for desktop on Linux. '
-      'This setting will take effect on the master, beta, and stable channels. '
-      'Newer beta versions are available on the beta channel.');
+      'This setting will take effect on the master, beta, and stable channels.');
     });
 
     testWithoutContext('Flutter Windows desktop help string', () {
@@ -367,36 +365,24 @@
       expect(featureFlags.isWindowsEnabled, true);
     });
 
-    // Windows UWP desktop
+    for (final Feature feature in <Feature>[
+      flutterWindowsDesktopFeature,
+      flutterMacOSDesktopFeature,
+      flutterLinuxDesktopFeature,
+    ]) {
+      test('${feature.name} available and enabled by default on master', () {
+        expect(feature.master.enabledByDefault, true);
+        expect(feature.master.available, true);
+      });
+      test('${feature.name} available and enabled by default on beta', () {
+        expect(feature.beta.enabledByDefault, true);
+        expect(feature.beta.available, true);
+      });
+      test('${feature.name} available and enabled by default on stable', () {
+        expect(feature.stable.enabledByDefault, true);
+        expect(feature.stable.available, true);
+      });
+    }
 
-    testWithoutContext('Flutter Windows UWP desktop off by default on master', () {
-      final FeatureFlags featureFlags = createFlags('master');
-
-      expect(featureFlags.isWindowsUwpEnabled, false);
-    });
-
-    testWithoutContext('Flutter Windows UWP desktop enabled with config on master', () {
-      final FeatureFlags featureFlags = createFlags('master');
-      testConfig.setValue('enable-windows-uwp-desktop', true);
-
-      expect(featureFlags.isWindowsUwpEnabled, true);
-    });
-
-    testWithoutContext('Flutter Windows UWP desktop config includes removal warning', () {
-      expect(windowsUwpEmbedding.extraHelpText, contains('Windows UWP support is obsolete and will be removed'));
-    });
-
-    testWithoutContext('Flutter Windows UWP desktop off by default on stable', () {
-      final FeatureFlags featureFlags = createFlags('stable');
-
-      expect(featureFlags.isWindowsUwpEnabled, false);
-    });
-
-    testWithoutContext('Flutter Windows UWP desktop not enabled with config on stable', () {
-      final FeatureFlags featureFlags = createFlags('stable');
-      testConfig.setValue('enable-windows-uwp-desktop', true);
-
-      expect(featureFlags.isWindowsUwpEnabled, false);
-    });
   });
 }