Changelog Updated

CHANGELOG.md

@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+ - Security BLE implemented (@xianglin1998)
+ - Added `hw settings blekey` to get and set ble connect key (@xianglin1998)
+ - Added `hw ble bonds clear` to delete all ble bonds (@xianglin1998)
  - Fixed argument completion bug inserting additional hyphens (@szymex73)
  - Fix device address is not the same with APP (@taichunmin)
  - Added initial version of the user guides (@GameTec-live)