diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d351f029a..2e339e660 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "4.49.0"
+  ".": "4.50.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 25218ff1d..1ee8c73f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [4.50.0](https://github.com/openai/openai-java/compare/v4.49.0...v4.50.0) (2026-08-03)
+
+
+### Features
+
+* **api:** Add GPT-5.5 model and optional tool name/namespace fields ([#837](https://github.com/openai/openai-java/issues/837)) ([af860dc](https://github.com/openai/openai-java/commit/af860dc957fdb1d02acaf721ae7ace8fdf16dbf4))
+
+
+### Chores
+
+* remove retired Spring Boot 2 starter ([#827](https://github.com/openai/openai-java/issues/827)) ([52e3c64](https://github.com/openai/openai-java/commit/52e3c64215b647aeebe1e9123c1c857a7bbe95af))
+
 ## 4.49.0 (2026-07-31)
 
 Full Changelog: [v4.48.0...v4.49.0](https://github.com/openai/openai-java/compare/v4.48.0...v4.49.0)
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 000a814bd..c0828069f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -76,14 +76,14 @@ Then in your project's `build.gradle.kts` or `pom.xml`, reference the locally pu
 <!-- x-release-please-start-version -->
 
 ```kotlin
-implementation("com.openai:openai-java:2.9.1")
+implementation("com.openai:openai-java:4.50.0")
 ```
 
 ```xml
 <dependency>
   <groupId>com.openai</groupId>
   <artifactId>openai-java</artifactId>
-  <version>2.9.1</version>
+  <version>4.50.0</version>
 </dependency>
 ```
 
diff --git a/README.md b/README.md
index 92a2c5cad..db9d78042 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/com.openai/openai-java)](https://central.sonatype.com/artifact/com.openai/openai-java/4.49.0)
-[![javadoc](https://javadoc.io/badge2/com.openai/openai-java/4.49.0/javadoc.svg)](https://javadoc.io/doc/com.openai/openai-java/4.49.0)
+[![Maven Central](https://img.shields.io/maven-central/v/com.openai/openai-java)](https://central.sonatype.com/artifact/com.openai/openai-java/4.50.0)
+[![javadoc](https://javadoc.io/badge2/com.openai/openai-java/4.50.0/javadoc.svg)](https://javadoc.io/doc/com.openai/openai-java/4.49.0)
 
 <!-- x-release-please-end -->
 
@@ -11,7 +11,7 @@ The OpenAI Java SDK provides convenient access to the [OpenAI REST API](https://
 
 <!-- x-release-please-start-version -->
 
-The REST API documentation can be found on [platform.openai.com](https://platform.openai.com/docs). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.openai/openai-java/4.49.0).
+The REST API documentation can be found on [platform.openai.com](https://platform.openai.com/docs). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.openai/openai-java/4.50.0).
 
 <!-- x-release-please-end -->
 
@@ -22,7 +22,7 @@ The REST API documentation can be found on [platform.openai.com](https://platfor
 ### Gradle
 
 ```kotlin
-implementation("com.openai:openai-java:4.49.0")
+implementation("com.openai:openai-java:4.50.0")
 ```
 
 ### Maven
@@ -31,7 +31,7 @@ implementation("com.openai:openai-java:4.49.0")
 <dependency>
   <groupId>com.openai</groupId>
   <artifactId>openai-java</artifactId>
-  <version>4.49.0</version>
+  <version>4.50.0</version>
 </dependency>
 ```
 
@@ -94,7 +94,7 @@ with normal AWS credentials:
 <!-- x-release-please-start-version -->
 
 ```kotlin
-implementation("com.openai:openai-java-bedrock:4.49.0")
+implementation("com.openai:openai-java-bedrock:4.50.0")
 ```
 
 <!-- x-release-please-end -->
diff --git a/bedrock.md b/bedrock.md
index ee85180fe..803f99e46 100644
--- a/bedrock.md
+++ b/bedrock.md
@@ -11,14 +11,14 @@ Use this artifact instead of adding AWS dependencies to the base OpenAI package
 <!-- x-release-please-start-version -->
 
 ```kotlin
-implementation("com.openai:openai-java-bedrock:4.49.0")
+implementation("com.openai:openai-java-bedrock:4.50.0")
 ```
 
 ```xml
 <dependency>
   <groupId>com.openai</groupId>
   <artifactId>openai-java-bedrock</artifactId>
-  <version>4.49.0</version>
+  <version>4.50.0</version>
 </dependency>
 ```
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 7cc3806e8..aea3e0d3c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -30,7 +30,7 @@ repositories {
 
 allprojects {
     group = "com.openai"
-    version = "4.49.0" // x-release-please-version
+    version = "4.50.0" // x-release-please-version
 
     // Dokka 2.1.0 depends on Jackson 2.15.3. Keep its isolated build-tool classpaths on a
     // secure, internally aligned Jackson release without changing the SDK's published or