diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd6f061b..899d1d90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [1.21.0] - 2026-08-06
+
+### Other Changes
+- feat(memory): add AgentCoreMemoryStore Strands integration (#588) (439d788)
+- feat(runtime): propagate X-Amz-Bedrock-AgentCore-Identity-WAT on outbound calls (#607) (01d3800)
+
 ## [1.20.0] - 2026-08-04
 
 ### Added
diff --git a/pyproject.toml b/pyproject.toml
index 107e9857..8ac63874 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "bedrock-agentcore"
-version = "1.20.0"
+version = "1.21.0"
 description = "An SDK for using Bedrock AgentCore"
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/uv.lock b/uv.lock
index fc19e6b7..3a87ebf5 100644
--- a/uv.lock
+++ b/uv.lock
@@ -458,7 +458,7 @@ wheels = [
 
 [[package]]
 name = "bedrock-agentcore"
-version = "1.20.0"
+version = "1.21.0"
 source = { editable = "." }
 dependencies = [
     { name = "boto3" },