diff --git a/CHANGELOG.md b/CHANGELOG.md
index a576461..f88d668 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.6.0] - 2026-01-31
+
 ### Changed
 - Integration tests now run by default in CI (#68)
 - Coverage threshold adjusted from 94% to 92%
@@ -281,7 +283,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Integration tests for encrypt/decrypt round-trips
 - AES KeyWrap test support module
 
-[Unreleased]: https://github.com/riddler/aws-encryption-sdk-elixir/compare/v0.5.0...HEAD
+[Unreleased]: https://github.com/riddler/aws-encryption-sdk-elixir/compare/v0.6.0...HEAD
+[0.6.0]: https://github.com/riddler/aws-encryption-sdk-elixir/compare/v0.5.0...v0.6.0
 [0.5.0]: https://github.com/riddler/aws-encryption-sdk-elixir/compare/v0.4.0...v0.5.0
 [0.4.0]: https://github.com/riddler/aws-encryption-sdk-elixir/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/riddler/aws-encryption-sdk-elixir/compare/v0.2.0...v0.3.0
diff --git a/CLAUDE.md b/CLAUDE.md
index da38205..25f2f5b 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -268,9 +268,9 @@ mix hex.publish
 - [x] AWS KMS MRK-aware keyrings
 
 ### Milestone 5: Advanced Features
-- [ ] Streaming encryption/decryption
-- [ ] Caching CMM
-- [ ] Required encryption context CMM
+- [x] Streaming encryption/decryption
+- [x] Caching CMM
+- [x] Required encryption context CMM
 
 ### Milestone 6: Validation
 - [ ] Full test vector suite
diff --git a/README.md b/README.md
index 22644c6..b1a37ff 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ An Elixir implementation of the [AWS Encryption SDK](https://docs.aws.amazon.com
 
 ## Current Status
 
-**Version**: 0.5.0 (pre-release)
+**Version**: 0.6.0 (pre-release)
 
 ### Implemented Features
 
@@ -36,17 +36,14 @@ An Elixir implementation of the [AWS Encryption SDK](https://docs.aws.amazon.com
 - ✅ AWS KMS Discovery Keyring
 - ✅ AWS KMS MRK Keyring
 - ✅ AWS KMS MRK Discovery Keyring
-
-### Not Yet Implemented
-
-- ❌ Streaming encryption/decryption
-- ❌ Caching CMM
-- ❌ Required Encryption Context CMM
+- ✅ Streaming encryption/decryption
+- ✅ Caching CMM
+- ✅ Required Encryption Context CMM
 
 ### Test Coverage
 
-- 469 tests passing
-- 93.8% code coverage
+- 805 tests passing
+- 92.6% code coverage
 
 ## Installation
 
@@ -55,7 +52,7 @@ Add `aws_encryption_sdk` to your list of dependencies in `mix.exs`:
 ```elixir
 def deps do
   [
-    {:aws_encryption_sdk, "~> 0.5.0"}
+    {:aws_encryption_sdk, "~> 0.6.0"}
   ]
 end
 ```
@@ -161,9 +158,9 @@ See [CHANGELOG.md](CHANGELOG.md) for detailed change history.
 
 **Planned for future releases:**
 
-1. **Streaming** - Large file encryption/decryption
-2. **Caching CMM** - Performance optimization for repeated operations
-3. **Required Encryption Context CMM** - Enforce required context keys
+1. **Full test vector suite** - Complete validation against AWS test vectors
+2. **Cross-SDK interoperability** - Comprehensive testing with other SDKs
+3. **Performance benchmarks** - Optimization and performance analysis
 
 ## Related Projects
 
diff --git a/mix.exs b/mix.exs
index 0d81f42..21ec332 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AwsEncryptionSdk.MixProject do
   use Mix.Project
 
-  @version "0.5.0"
+  @version "0.6.0"
   @source_url "https://github.com/riddler/aws-encryption-sdk-elixir"
 
   def project do