diff --git a/CHANGELOG.md b/CHANGELOG.md
index 333e4d4..91de699 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.9.0
+
+> Note: This release has breaking changes.
+
+ - **BREAKING** **FEAT**: migrate to Dart 3 (#25).
+
 ## 0.8.2
 
  - **REFACTOR**: bump `mews_pedantic` (#24).
diff --git a/pubspec.yaml b/pubspec.yaml
index d8f13e7..69d77fc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: dfunc
 description: Functional batteries for Dart. Implementation of Either, Optional etc.
-version: 0.8.2
+version: 0.9.0
 homepage: https://github.com/ookami-kb/dfunc
 
 environment: