diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01e0d697c74c..e2730fc58fa3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+## 3.8.0
+
 ## 3.7.0
 
 ### Language
diff --git a/pkg/_fe_analyzer_shared/lib/src/experiments/flags.dart b/pkg/_fe_analyzer_shared/lib/src/experiments/flags.dart
index f32c1ced7d9f..9419dd2f7ff4 100644
--- a/pkg/_fe_analyzer_shared/lib/src/experiments/flags.dart
+++ b/pkg/_fe_analyzer_shared/lib/src/experiments/flags.dart
@@ -6,7 +6,7 @@
 //
 // Instead modify 'tools/experimental_features.yaml' and run
 // 'dart pkg/front_end/tool/cfe.dart generate-experimental-flags' to update.
-const Version defaultLanguageVersion = const Version(3, 7);
+const Version defaultLanguageVersion = const Version(3, 8);
 
 /// Enum for experimental flags shared between the CFE and the analyzer.
 enum ExperimentalFlag {
diff --git a/pkg/analyzer/lib/src/dart/analysis/experiments.g.dart b/pkg/analyzer/lib/src/dart/analysis/experiments.g.dart
index 3c4b256845d4..7f78b8407ea2 100644
--- a/pkg/analyzer/lib/src/dart/analysis/experiments.g.dart
+++ b/pkg/analyzer/lib/src/dart/analysis/experiments.g.dart
@@ -12,7 +12,7 @@ part of 'experiments.dart';
 
 /// The current version of the Dart language (or, for non-stable releases, the
 /// version of the language currently in the process of being developed).
-const _currentVersion = '3.7.0';
+const _currentVersion = '3.8.0';
 
 /// A map containing information about all known experimental flags.
 final _knownFeatures = <String, ExperimentalFeature>{
diff --git a/pkg/front_end/testcases/general/too_high_version/main.dart.strong.expect b/pkg/front_end/testcases/general/too_high_version/main.dart.strong.expect
index 8499a621dcf3..20f8d69da801 100644
--- a/pkg/front_end/testcases/general/too_high_version/main.dart.strong.expect
+++ b/pkg/front_end/testcases/general/too_high_version/main.dart.strong.expect
@@ -1,7 +1,7 @@
 //
 // Problems outside component:
 //
-// pkg/front_end/testcases/general/too_high_version/too_high/lib/too_high_lib.dart:1:1: Error: The language version 100.200 specified for the package 'too_high' is too high. The highest supported language version is 3.7.
+// pkg/front_end/testcases/general/too_high_version/too_high/lib/too_high_lib.dart:1:1: Error: The language version 100.200 specified for the package 'too_high' is too high. The highest supported language version is 3.8.
 // // Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
 // ^
 //
diff --git a/pkg/front_end/testcases/general/too_high_version/main.dart.strong.modular.expect b/pkg/front_end/testcases/general/too_high_version/main.dart.strong.modular.expect
index 8499a621dcf3..20f8d69da801 100644
--- a/pkg/front_end/testcases/general/too_high_version/main.dart.strong.modular.expect
+++ b/pkg/front_end/testcases/general/too_high_version/main.dart.strong.modular.expect
@@ -1,7 +1,7 @@
 //
 // Problems outside component:
 //
-// pkg/front_end/testcases/general/too_high_version/too_high/lib/too_high_lib.dart:1:1: Error: The language version 100.200 specified for the package 'too_high' is too high. The highest supported language version is 3.7.
+// pkg/front_end/testcases/general/too_high_version/too_high/lib/too_high_lib.dart:1:1: Error: The language version 100.200 specified for the package 'too_high' is too high. The highest supported language version is 3.8.
 // // Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
 // ^
 //
diff --git a/pkg/front_end/testcases/general/too_high_version/main.dart.strong.outline.expect b/pkg/front_end/testcases/general/too_high_version/main.dart.strong.outline.expect
index 8499a621dcf3..20f8d69da801 100644
--- a/pkg/front_end/testcases/general/too_high_version/main.dart.strong.outline.expect
+++ b/pkg/front_end/testcases/general/too_high_version/main.dart.strong.outline.expect
@@ -1,7 +1,7 @@
 //
 // Problems outside component:
 //
-// pkg/front_end/testcases/general/too_high_version/too_high/lib/too_high_lib.dart:1:1: Error: The language version 100.200 specified for the package 'too_high' is too high. The highest supported language version is 3.7.
+// pkg/front_end/testcases/general/too_high_version/too_high/lib/too_high_lib.dart:1:1: Error: The language version 100.200 specified for the package 'too_high' is too high. The highest supported language version is 3.8.
 // // Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
 // ^
 //
diff --git a/pkg/front_end/testcases/general/version_too_high.dart.strong.expect b/pkg/front_end/testcases/general/version_too_high.dart.strong.expect
index 33c5a33db91d..3fc3380fd014 100644
--- a/pkg/front_end/testcases/general/version_too_high.dart.strong.expect
+++ b/pkg/front_end/testcases/general/version_too_high.dart.strong.expect
@@ -2,7 +2,7 @@ library;
 //
 // Problems in library:
 //
-// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.7.
+// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.8.
 // // @dart=100.200
 // ^^^^^^^^^^^^^^^^
 //
diff --git a/pkg/front_end/testcases/general/version_too_high.dart.strong.modular.expect b/pkg/front_end/testcases/general/version_too_high.dart.strong.modular.expect
index 33c5a33db91d..3fc3380fd014 100644
--- a/pkg/front_end/testcases/general/version_too_high.dart.strong.modular.expect
+++ b/pkg/front_end/testcases/general/version_too_high.dart.strong.modular.expect
@@ -2,7 +2,7 @@ library;
 //
 // Problems in library:
 //
-// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.7.
+// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.8.
 // // @dart=100.200
 // ^^^^^^^^^^^^^^^^
 //
diff --git a/pkg/front_end/testcases/general/version_too_high.dart.strong.outline.expect b/pkg/front_end/testcases/general/version_too_high.dart.strong.outline.expect
index 04929fdbc813..4bf1b99a8d8a 100644
--- a/pkg/front_end/testcases/general/version_too_high.dart.strong.outline.expect
+++ b/pkg/front_end/testcases/general/version_too_high.dart.strong.outline.expect
@@ -2,7 +2,7 @@ library;
 //
 // Problems in library:
 //
-// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.7.
+// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.8.
 // // @dart=100.200
 // ^^^^^^^^^^^^^^^^
 //
diff --git a/pkg/front_end/testcases/general/version_too_high.dart.strong.transformed.expect b/pkg/front_end/testcases/general/version_too_high.dart.strong.transformed.expect
index 33c5a33db91d..3fc3380fd014 100644
--- a/pkg/front_end/testcases/general/version_too_high.dart.strong.transformed.expect
+++ b/pkg/front_end/testcases/general/version_too_high.dart.strong.transformed.expect
@@ -2,7 +2,7 @@ library;
 //
 // Problems in library:
 //
-// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.7.
+// pkg/front_end/testcases/general/version_too_high.dart:5:1: Error: The specified language version 100.200 is too high. The highest supported language version is 3.8.
 // // @dart=100.200
 // ^^^^^^^^^^^^^^^^
 //
diff --git a/pkg/kernel/lib/default_language_version.dart b/pkg/kernel/lib/default_language_version.dart
index 374391d4f2f2..d107afdbb4db 100644
--- a/pkg/kernel/lib/default_language_version.dart
+++ b/pkg/kernel/lib/default_language_version.dart
@@ -9,4 +9,4 @@
 
 import "ast.dart";
 
-const Version defaultLanguageVersion = const Version(3, 7);
+const Version defaultLanguageVersion = const Version(3, 8);
diff --git a/tools/VERSION b/tools/VERSION
index 126379c1ea23..940f07d13486 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -25,7 +25,7 @@
 #
 CHANNEL main
 MAJOR 3
-MINOR 7
+MINOR 8
 PATCH 0
 PRERELEASE 0
 PRERELEASE_PATCH 0
diff --git a/tools/experimental_features.yaml b/tools/experimental_features.yaml
index 039001464eec..2a8d83d66225 100644
--- a/tools/experimental_features.yaml
+++ b/tools/experimental_features.yaml
@@ -24,6 +24,7 @@
 #
 # kernel:
 #   dart pkg/front_end/tool/cfe.dart generate-experimental-flags
+#   dart pkg/front_end/tool/update_expectations.dart
 #
 # vm:
 #   dart tools/generate_experimental_flags.dart
@@ -109,7 +110,7 @@
 # default 'language' "category" with code generated for both CFE and Analyzer,
 # while other categories can be tailored more specifically.
 
-current-version: '3.7.0'
+current-version: '3.8.0'
 
 features:
   variance: