diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2e04f95b..8efb275a 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1 +1 @@
-{".":"0.3.3"}
+{".":"0.4.0"}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a1bf98a..8b52a301 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,27 @@
 # Changelog
 
+## [0.4.0](https://github.com/open-feature/kotlin-sdk/compare/v0.3.3...v0.4.0) (2025-03-05)
+
+
+### ⚠ BREAKING CHANGES
+
+* rework states and adapt spec v0.8 ([#117](https://github.com/open-feature/kotlin-sdk/issues/117))
+
+### 🐛 Bug Fixes
+
+* bring back provider eventing ([#124](https://github.com/open-feature/kotlin-sdk/issues/124)) ([06b6f6b](https://github.com/open-feature/kotlin-sdk/commit/06b6f6bef22c6ec55a07b686d13e848d1aad5857))
+* **deps:** update dependency org.mockito.kotlin:mockito-kotlin to v5.4.0 ([#105](https://github.com/open-feature/kotlin-sdk/issues/105)) ([5bde444](https://github.com/open-feature/kotlin-sdk/commit/5bde4445a6bc6d6bfdaf7291b5eefd0cd4956ad5))
+
+
+### 📚 Documentation
+
+* add eventing section to read me ([#126](https://github.com/open-feature/kotlin-sdk/issues/126)) ([0921091](https://github.com/open-feature/kotlin-sdk/commit/09210914c217a1ebeb396e95ba2a5e0681892207))
+
+
+### 🔄 Refactoring
+
+* rework states and adapt spec v0.8 ([#117](https://github.com/open-feature/kotlin-sdk/issues/117)) ([458b564](https://github.com/open-feature/kotlin-sdk/commit/458b56424d9f9277e125c995234e742cd4873671))
+
 ## [0.3.3](https://github.com/open-feature/kotlin-sdk/compare/v0.3.2...v0.3.3) (2025-01-16)
 
 
diff --git a/README.md b/README.md
index 1b1e8cb3..b72445fb 100644
--- a/README.md
+++ b/README.md
@@ -16,8 +16,8 @@
     <img alt="Specification" src="https://img.shields.io/static/v1?label=specification&message=v0.8.0&color=yellow&style=for-the-badge" />
   </a>
   <!-- x-release-please-start-version -->
-  <a href="https://github.com/open-feature/kotlin-sdk/releases/tag/v0.3.3">
-    <img alt="Release" src="https://img.shields.io/static/v1?label=release&message=v0.3.3&color=blue&style=for-the-badge" />
+  <a href="https://github.com/open-feature/kotlin-sdk/releases/tag/v0.4.0">
+    <img alt="Release" src="https://img.shields.io/static/v1?label=release&message=v0.4.0&color=blue&style=for-the-badge" />
   </a>
   <!-- x-release-please-end -->
   <br/>
@@ -48,7 +48,7 @@ Installation via Maven Central is preferred, using the following dependency:
 <!-- x-release-please-start-version -->
 ```kotlin
 dependencies {
-    api("dev.openfeature:android-sdk:0.3.3")
+    api("dev.openfeature:android-sdk:0.4.0")
 }
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 74b36766..31b2e51d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -9,7 +9,7 @@ plugins {
 allprojects {
     extra["groupId"] = "dev.openfeature"
 // x-release-please-start-version
-    ext["version"] = "0.3.3"
+    ext["version"] = "0.4.0"
 // x-release-please-end
 }
 group = project.extra["groupId"].toString()
diff --git a/version.txt b/version.txt
index 1c09c74e..1d0ba9ea 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.3.3
+0.4.0