diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 8ed0e81..d806f0b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,4 +1,3 @@
 {
-    ".": "9.0.0"
-}
-  
\ No newline at end of file
+    ".": "10.0.0-rc.1"
+}
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6fa8ae4..65c5ffa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+## [10.0.0-rc.1](https://github.com/VeryGoodOpenSource/very_good_analysis/compare/v9.0.0...v9.1.0) (2025-08-22)
+
+
+### Features
+
+* support Dart 3.9.0 ([#162](https://github.com/VeryGoodOpenSource/very_good_analysis/issues/162)) ([44fab49](https://github.com/VeryGoodOpenSource/very_good_analysis/commit/44fab4952609b6b6807136cd9156ed5fa680e37e))
+
+
+### Docs
+
+* update `CONTRIBUTING.md` to explain how to add new lint rules ([#156](https://github.com/VeryGoodOpenSource/very_good_analysis/issues/156)) ([447051a](https://github.com/VeryGoodOpenSource/very_good_analysis/commit/447051a324ac232d5f2c0298449631ac87b09ad7))
 
 ## 9.0.0
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 6786ec1..f214030 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: very_good_analysis
-version: 9.0.0
+version: 10.0.0-rc.1
 description: Lint rules for Dart and Flutter used internally at Very Good Ventures.
 repository: https://github.com/VeryGoodOpenSource/very_good_analysis
 issue_tracker: https://github.com/VeryGoodOpenSource/very_good_analysis/issues