diff --git a/pkg/analysis_server/test/analysis/get_hover_test.dart b/pkg/analysis_server/test/analysis/get_hover_test.dart
index 576895b..eef7d09 100644
--- a/pkg/analysis_server/test/analysis/get_hover_test.dart
+++ b/pkg/analysis_server/test/analysis/get_hover_test.dart
@@ -868,7 +868,6 @@
   }
 
   Future<void> test_nonNullable() async {
-    createAnalysisOptionsFile(experiments: ['non-nullable']);
     addTestFile('''
 int? f(double? a) => null;
 
diff --git a/pkg/analysis_server/test/analysis_abstract.dart b/pkg/analysis_server/test/analysis_abstract.dart
index 86ec647..8a7d311 100644
--- a/pkg/analysis_server/test/analysis_abstract.dart
+++ b/pkg/analysis_server/test/analysis_abstract.dart
@@ -89,19 +89,6 @@
     return testFile;
   }
 
-  /// Create an analysis options file based on the given arguments.
-  void createAnalysisOptionsFile({List<String>? experiments}) {
-    var buffer = StringBuffer();
-    if (experiments != null) {
-      buffer.writeln('analyzer:');
-      buffer.writeln('  enable-experiment:');
-      for (var experiment in experiments) {
-        buffer.writeln('    - $experiment');
-      }
-    }
-    newAnalysisOptionsYamlFile(projectPath, content: buffer.toString());
-  }
-
   AnalysisServer createAnalysisServer() {
     //
     // Create an SDK in the mock file system.
diff --git a/pkg/analyzer/lib/src/dart/analysis/driver.dart b/pkg/analyzer/lib/src/dart/analysis/driver.dart
index aba8fef..630a495 100644
--- a/pkg/analyzer/lib/src/dart/analysis/driver.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/driver.dart
@@ -80,7 +80,7 @@
 /// TODO(scheglov) Clean up the list of implicitly analyzed files.
 class AnalysisDriver implements AnalysisDriverGeneric {
   /// The version of data format, should be incremented on every format change.
-  static const int DATA_VERSION = 186;
+  static const int DATA_VERSION = 187;
 
   /// The number of exception contexts allowed to write. Once this field is
   /// zero, we stop writing any new exception contexts in this process.
diff --git a/tools/VERSION b/tools/VERSION
index 3ce629c..31e67dc 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -27,5 +27,5 @@
 MAJOR 2
 MINOR 15
 PATCH 0
-PRERELEASE 213
+PRERELEASE 214
 PRERELEASE_PATCH 0
\ No newline at end of file