Update CHANGELOG for 0.11.1

Author: PokhodenkoSA

CHANGELOG.md

@@ -4,11 +4,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Next Release] TBD
+## [Next Release] - TBD
 
-### Changed
 - dpctl-capi is now renamed to `libsyclinterface` (#666).
 
+## [0.11.1] - 11/10/2021
+
+### Changed
+- Replaced uses of clang compiler with icx executable (#665)
+
 ## [0.11.0] - 11/01/2021
 
 ### Added