Update sunsetted Flutter SDK versions (#8874)

The general rules are:
- SDKs that are 2 years old should no longer be supported
- SDKs that are 3 months away from not being supported should get a
warning.

Author: helin24

src/io/flutter/sdk/FlutterSdkVersion.java

@@ -26,11 +26,11 @@ public final class FlutterSdkVersion implements Comparable<FlutterSdkVersion> {
    * Note, this is for the Flutter SDK version, not the Dart SDK version, this mapping can be found:
    * <a href="https://docs.flutter.dev/release/archive">Flutter SDK Release Archive list</a>.
    * <p>
-   * This version was updated last on December 5, 2025.
+   * This version was updated last on March 26, 2026.
    */
   @VisibleForTesting
   @NotNull
-  public static final FlutterSdkVersion MIN_SDK_SUPPORTED = new FlutterSdkVersion("3.16");
+  public static final FlutterSdkVersion MIN_SDK_SUPPORTED = new FlutterSdkVersion("3.19.4");
 
   /**
    * The minimum version of the Flutter SDK that will be supported for 3 more months. A version less than this is either not supported or
@@ -39,11 +39,11 @@ public final class FlutterSdkVersion implements Comparable<FlutterSdkVersion> {
    * Note, this is for the Flutter SDK version, not the Dart SDK version, this mapping can be found:
    * <a href="https://docs.flutter.dev/release/archive">Flutter SDK Release Archive list</a>.
    * <p>
-   * This version was updated last on December 5, 2025.
+   * This version was updated last on March 26, 2026.
    */
   @VisibleForTesting
   @NotNull
-  public static final FlutterSdkVersion MIN_SDK_WITHOUT_SUNSET_WARNING = new FlutterSdkVersion("3.19.4");
+  public static final FlutterSdkVersion MIN_SDK_WITHOUT_SUNSET_WARNING = new FlutterSdkVersion("3.22.2");
 
   @NotNull
   private static final FlutterSdkVersion MIN_SUPPORTS_TOOL_EVENT_STREAM = new FlutterSdkVersion("3.7.1");

testSrc/unit/io/flutter/sdk/FlutterSdkVersionTest.java

@@ -18,18 +18,19 @@ public void parsesGoodVersion() {
 
   @Test
   public void trackSdkVersionSupport() {
-    assertFalse(new FlutterSdkVersion("3.15.0").isSDKSupported());
-    assertFalse(new FlutterSdkVersion("3.16.0-0.1.pre").isSDKSupported());
-    assertTrue(new FlutterSdkVersion("3.16.0").isSDKSupported());
-    assertTrue(new FlutterSdkVersion("3.16.1").isSDKSupported());
-    assertTrue(new FlutterSdkVersion("3.17.0").isSDKSupported());
+    assertFalse(new FlutterSdkVersion("3.19.3").isSDKSupported());
+    assertFalse(new FlutterSdkVersion("3.19.4-0.1.pre").isSDKSupported());
+    assertTrue(new FlutterSdkVersion("3.19.4").isSDKSupported());
+    assertTrue(new FlutterSdkVersion("3.19.5").isSDKSupported());
+    assertTrue(new FlutterSdkVersion("3.20.0").isSDKSupported());
     assertFalse(new FlutterSdkVersion("unknown").isSDKSupported());
 
-    assertTrue(new FlutterSdkVersion("3.16.0").isSDKAboutToSunset());
-    assertTrue(new FlutterSdkVersion("3.17.0").isSDKAboutToSunset());
-    assertTrue(new FlutterSdkVersion("3.19.3").isSDKAboutToSunset());
-    assertFalse(new FlutterSdkVersion("3.19.4").isSDKAboutToSunset());
-    assertFalse(new FlutterSdkVersion("3.20.0").isSDKAboutToSunset());
+    assertTrue(new FlutterSdkVersion("3.19.4").isSDKAboutToSunset());
+    assertTrue(new FlutterSdkVersion("3.20.0").isSDKAboutToSunset());
+    assertTrue(new FlutterSdkVersion("3.22.0").isSDKAboutToSunset());
+    assertTrue(new FlutterSdkVersion("3.22.1").isSDKAboutToSunset());
+    assertFalse(new FlutterSdkVersion("3.22.2").isSDKAboutToSunset());
+    assertFalse(new FlutterSdkVersion("3.23.0").isSDKAboutToSunset());
   }
 
   @Test