Workiva · btr-rmconsole-2 · Aug 6, 2026 · Jul 30, 2026 · Jul 30, 2026 · Jul 30, 2026
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -13,18 +13,22 @@ jobs:
   checks:
     uses: Workiva/gha-dart-oss/.github/workflows/checks.yaml@v0.1.12
     with:
+      sdk: 3.12.2
+      format-check: false
       additional-checks: |
         no_entrypoint_imports
 
   build:
     uses: Workiva/gha-dart-oss/.github/workflows/build.yaml@v0.1.12
+    with:
+      sdk: 3.12.2
 
   test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        sdk: [ 2.19.6 ]
+        sdk: [ 3.12.2 ]
     steps:
       - uses: actions/checkout@v2
       - uses: dart-lang/setup-dart@v0.2

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## Unreleased
+- Upgrade to Dart 3 SDK (`>=3.12.0 <4.0.0`)
+- Remove `null_safety_required_props` codemod and related fixtures (null-safety migration tooling no longer needed under Dart 3)
+
 ## 2.38.0
 - Add mui_system_props_migration codemod to migrate from system props to sx
 

diff --git a/bin/null_safety_migrator_companion.dart b/bin/null_safety_migrator_companion.dart
diff --git a/bin/null_safety_prep.dart b/bin/null_safety_prep.dart
diff --git a/bin/null_safety_required_props.dart b/bin/null_safety_required_props.dart
diff --git a/bin/required_flux_props.dart b/bin/required_flux_props.dart
diff --git a/lib/src/boilerplate_suggestors/boilerplate_utilities.dart b/lib/src/boilerplate_suggestors/boilerplate_utilities.dart
@@ -123,7 +123,7 @@ class SemverHelper {
     }
 
     final locations = <String>[];
-    _exportList!.forEach((key, value) {
+    _exportList.forEach((key, value) {
       if (value['type'] == 'class' && value['grammar']['name'] == className) {
         locations.add(key);
       }

diff --git a/lib/src/creator_utils.dart b/lib/src/creator_utils.dart
@@ -206,7 +206,7 @@ class DartProjectCreatorTestConfig {
   }
 
   String get testName {
-    if (_testName != null) return _testName!;
+    if (_testName != null) return _testName;
 
     var name = 'returns exit code ${expectedExitCode} with ';
     if (pubspecCreators.isEmpty) {

diff --git a/lib/src/dart3_suggestors/null_safety_prep/analyzer_plugin_utils.dart b/lib/src/dart3_suggestors/null_safety_prep/analyzer_plugin_utils.dart