diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f6f8b4c8..099c9d751 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,32 @@
+## 12.1.0
+* Improved CI (#930)
+* Improved MQTT_STD_XXX support (#929)
+* Removed boost.log include when MQTT_USE_LOG is off (#927)
+* Removed async_force_disconnect() call from session_state (#925)
+* Added authentication/authorization support (#896, #921, #923)
+* Added running_in_this_thread() wrapper (#918)
+* Fixed client_id setting bug (#917)
+* Fixed resend_pubrel_ registration logic (#914)
+* Fixed example code topic comparison (#913)
+* Added a CLI(Command Line Interface) mqtt client tool (#911, #920)
+* Added setup_socket() on client constructor (#909)
+* Added defer wrapper (#908)
+* Added dispatch wrapper (#907)
+* Added comparison operators for properties (#906)
+* Added missing dependencies in Package Configuration File (#903)
+* Separated connect_handler functions (#895)
+* Refine response_topic life management (#894)
+* Made uuid gen to thread_local (#893)
+* Supported request_response_information and response_topic (#892)
+* Implemented client_id assignment when client send empty one (#891)
+* Refined binary buffer operation (#890)
+* Fixed correlation_data property (#889)
+* Moved start_session() call after all handlers se. (#881)
+* Added set options print for broker (#880)
+* Added mutex for `retains_` (#879)
+* Added a performance meajure tool `bench` (#878, #882, #883, #884, #885, #886, #887, #898, #899, #900, #905)
+* Fixed broker side qos2 exactly once logic (#874)
+* Added publish handled QoS2 packet id getter and restore (#873)
 ## 12.0.0
 * Improved exampless (#870)
 * Fixed example broker's invalid sync connack call (#869)
diff --git a/README.md b/README.md
index 10f112da1..1ee7d3894 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # MQTT client/server for C++14 based on Boost.Asio
 
-Version 12.0.0 [![Actions Status](https://github.com/redboltz/mqtt_cpp/workflows/CI/badge.svg)](https://github.com/redboltz/mqtt_cpp/actions)[![Build Status](https://dev.azure.com/redboltz/redboltz/_apis/build/status/redboltz.mqtt_cpp?branchName=master)](https://dev.azure.com/redboltz/redboltz/_build/latest?definitionId=6&branchName=master)[![codecov](https://codecov.io/gh/redboltz/mqtt_cpp/branch/master/graph/badge.svg)](https://codecov.io/gh/redboltz/mqtt_cpp)
+Version 12.1.0 [![Actions Status](https://github.com/redboltz/mqtt_cpp/workflows/CI/badge.svg)](https://github.com/redboltz/mqtt_cpp/actions)[![Build Status](https://dev.azure.com/redboltz/redboltz/_apis/build/status/redboltz.mqtt_cpp?branchName=master)](https://dev.azure.com/redboltz/redboltz/_build/latest?definitionId=6&branchName=master)[![codecov](https://codecov.io/gh/redboltz/mqtt_cpp/branch/master/graph/badge.svg)](https://codecov.io/gh/redboltz/mqtt_cpp)
 
 Important note https://github.com/redboltz/mqtt_cpp/wiki/News.