diff --git a/Cargo.toml b/Cargo.toml
index aa5ee16..d709c48 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.8.0-b0"
+version = "0.9.0-b0"
 edition = "2024"
 
 [workspace.dependencies]
diff --git a/changelog.md b/changelog.md
index 0de9466..669ba82 100644
--- a/changelog.md
+++ b/changelog.md
@@ -2,11 +2,17 @@
 
 ## Release Note v0.8.0-b0
 
+### Features
+- development releases
+
+
+
+## Release Note v0.8.0
+
 ### Documentation
 - document websocket "current_session" event
 
 ### Features
-- development releases
 - live_session send current_session as synchronisation
 
 ### Housekeeping