diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b7d35ad5..c5cc7b991 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 2.40.0
+
+### Added
+- The ability to create multiple Clients using shared `ExecutorService`
+- `closeChannels` method to `Client` to close the channels without closing the executor
+- New method to update security parameters when updating the addressbook
+
+### Fixed
+- handling of `BUSY` status code
+
 ## 2.39.0
 
 ### Added
diff --git a/docs/android-app/android-app-quickstart.md b/docs/android-app/android-app-quickstart.md
index f17118920..79db739a9 100644
--- a/docs/android-app/android-app-quickstart.md
+++ b/docs/android-app/android-app-quickstart.md
@@ -6,7 +6,7 @@ To get started with an Android project, you'll need to add the following **two**
 
 1. **Hedera™ Java SDK:**
 ```groovy
-implementation 'com.hedera.hashgraph:sdk:2.39.0'
+implementation 'com.hedera.hashgraph:sdk:2.40.0'
 ```
 
 2. **gRPC implementation:**
diff --git a/docs/java-app/java-app-quickstart.md b/docs/java-app/java-app-quickstart.md
index 7b2c48e40..ac1812218 100644
--- a/docs/java-app/java-app-quickstart.md
+++ b/docs/java-app/java-app-quickstart.md
@@ -8,7 +8,7 @@ To get started with a Java project, you'll need to add the following **three** d
 
 _Gradle:_
 ```groovy
-implementation 'com.hedera.hashgraph:sdk:2.39.0'
+implementation 'com.hedera.hashgraph:sdk:2.40.0'
 ```
 
 _Maven:_
@@ -16,7 +16,7 @@ _Maven:_
 <dependency>
   <groupId>com.hedera.hashgraph</groupId>
   <artifactId>sdk</artifactId>
-  <version>2.39.0</version>
+  <version>2.40.0</version>
 </dependency>
 ```
 
diff --git a/example-android/app/build.gradle.kts b/example-android/app/build.gradle.kts
index cb71b1ac7..dc935640d 100644
--- a/example-android/app/build.gradle.kts
+++ b/example-android/app/build.gradle.kts
@@ -68,7 +68,7 @@ dependencies {
     implementation(platform("com.hedera.hashgraph:sdk-dependency-versions"))
     // ---------------------------------------------
 
-    implementation("com.hedera.hashgraph:sdk:2.39.0")
+    implementation("com.hedera.hashgraph:sdk:2.40.0")
 
     implementation("com.google.android.material:material:1.11.0")
 
diff --git a/examples/build.gradle.kts b/examples/build.gradle.kts
index b7acdc6e8..9a686fd8e 100644
--- a/examples/build.gradle.kts
+++ b/examples/build.gradle.kts
@@ -28,6 +28,6 @@ mainModuleInfo {
 }
 
 dependencies.constraints {
-    implementation("com.hedera.hashgraph:sdk:2.39.0")
-    implementation("com.hedera.hashgraph:sdk-full:2.39.0")
+    implementation("com.hedera.hashgraph:sdk:2.40.0")
+    implementation("com.hedera.hashgraph:sdk-full:2.40.0")
 }
diff --git a/version.txt b/version.txt
index cde8adf34..770060be9 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-2.39.0
+2.40.0