diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index cce9240..da59f99 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.1"
+  ".": "0.4.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f70f24e..10fed21 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,25 @@
 # Changelog
 
+## 0.4.0 (2023-10-31)
+
+Full Changelog: [v0.3.1...v0.4.0](https://github.com/anthropics/anthropic-bedrock-python/compare/v0.3.1...v0.4.0)
+
+### Features
+
+* **client:** support accessing raw response objects ([#34](https://github.com/anthropics/anthropic-bedrock-python/issues/34)) ([1833b84](https://github.com/anthropics/anthropic-bedrock-python/commit/1833b8487950a2628b87cac62813b3feadad7261))
+* **github:** include a devcontainer setup ([#40](https://github.com/anthropics/anthropic-bedrock-python/issues/40)) ([8a74a91](https://github.com/anthropics/anthropic-bedrock-python/commit/8a74a9189761979b93ba9bcfb1ac4a36b1f858ba))
+* **package:** add classifiers ([#38](https://github.com/anthropics/anthropic-bedrock-python/issues/38)) ([6670b3d](https://github.com/anthropics/anthropic-bedrock-python/commit/6670b3daf849498a5937d74ca4a894d54767e28d))
+
+
+### Chores
+
+* **internal:** minor restructuring of base client ([#37](https://github.com/anthropics/anthropic-bedrock-python/issues/37)) ([e3550c9](https://github.com/anthropics/anthropic-bedrock-python/commit/e3550c97d898c2049ffe067fbfa4ff6025e1d03d))
+
+
+### Documentation
+
+* fix github links ([#39](https://github.com/anthropics/anthropic-bedrock-python/issues/39)) ([c1ad694](https://github.com/anthropics/anthropic-bedrock-python/commit/c1ad69475e65788cf5524a4a2b3df6a858176f95))
+
 ## 0.3.1 (2023-10-26)
 
 Full Changelog: [v0.3.0...v0.3.1](https://github.com/anthropics/anthropic-bedrock-python/compare/v0.3.0...v0.3.1)
diff --git a/pyproject.toml b/pyproject.toml
index 5a21bbc..a9804f2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "anthropic-bedrock"
-version = "0.3.1"
+version = "0.4.0"
 description = "Client library for the anthropic-bedrock API"
 readme = "README.md"
 license = "MIT"
diff --git a/src/anthropic_bedrock/_version.py b/src/anthropic_bedrock/_version.py
index 82b5769..baba68d 100644
--- a/src/anthropic_bedrock/_version.py
+++ b/src/anthropic_bedrock/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless.
 
 __title__ = "anthropic_bedrock"
-__version__ = "0.3.1"  # x-release-please-version
+__version__ = "0.4.0"  # x-release-please-version