From e110d2340562a1aefc68f6bac97e9b055bf52ee7 Mon Sep 17 00:00:00 2001
From: FarhanAnjum-opti <farhan.anjum@optimizely.com>
Date: Thu, 13 Nov 2025 02:55:32 +0600
Subject: [PATCH] chore: update changelog and version to 5.2.0; increase
 default CMAB cache size

---
 CHANGELOG.md                        | 22 ++++++++++++++++++++++
 lib/optimizely/cmab/cmab_service.rb |  2 +-
 lib/optimizely/version.rb           |  2 +-
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0330fa06..4f0beacc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,27 @@
 # Optimizely Ruby SDK Changelog
 
+## 5.2.0
+November 13th, 2025
+
+### New Features  
+- Added CMAB client implementation to support contextual multi-armed bandit decisioning. ([#364](https://github.com/optimizely/ruby-sdk/pull/364))  
+- Implemented CMAB service to manage contextual decision logic. ([#367](https://github.com/optimizely/ruby-sdk/pull/367))  
+- Added SDK multi-region support for data hosting. ([#365](https://github.com/optimizely/ruby-sdk/pull/365))  
+
+### Enhancements  
+- Added `experiment_id` and `variation_id` to event payloads. ([#361](https://github.com/optimizely/ruby-sdk/pull/361))  
+- Updated project config to track CMAB properties. ([#362](https://github.com/optimizely/ruby-sdk/pull/362))  
+- Added `remove` method in LRU Cache for CMAB service. ([#366](https://github.com/optimizely/ruby-sdk/pull/366))  
+- Implemented Decision Service methods to handle CMAB logic. ([#369](https://github.com/optimizely/ruby-sdk/pull/369))  
+- Updated impression events to include CMAB UUID. ([#370](https://github.com/optimizely/ruby-sdk/pull/370))  
+- Exposed CMAB prediction endpoint in URL template. ([#378](https://github.com/optimizely/ruby-sdk/pull/378))  
+
+### Bug Fixes  
+- Fixed Rubocop failures on Ruby 3.0.0. ([#371](https://github.com/optimizely/ruby-sdk/pull/371))  
+- Fixed concurrency issue in CMAB service. ([#375](https://github.com/optimizely/ruby-sdk/pull/375))  
+- Minor bugbash updates and stability improvements. ([#377](https://github.com/optimizely/ruby-sdk/pull/377))  
+
+
 ## 5.1.0
 January 10th, 2025
 
diff --git a/lib/optimizely/cmab/cmab_service.rb b/lib/optimizely/cmab/cmab_service.rb
index e432d672..9254b7d3 100644
--- a/lib/optimizely/cmab/cmab_service.rb
+++ b/lib/optimizely/cmab/cmab_service.rb
@@ -30,7 +30,7 @@ module Optimizely
   class DefaultCmabCacheOptions
     # CMAB Constants
     DEFAULT_CMAB_CACHE_TIMEOUT = (30 * 60) # in seconds
-    DEFAULT_CMAB_CACHE_SIZE = 1000
+    DEFAULT_CMAB_CACHE_SIZE = 10_000
   end
 
   # Default CMAB service implementation
diff --git a/lib/optimizely/version.rb b/lib/optimizely/version.rb
index 27894065..3883e0c7 100644
--- a/lib/optimizely/version.rb
+++ b/lib/optimizely/version.rb
@@ -17,5 +17,5 @@
 #
 module Optimizely
   CLIENT_ENGINE = 'ruby-sdk'
-  VERSION = '5.1.0'
+  VERSION = '5.2.0'
 end