Merge pull request #311 from baidu/release/v0.8.0

Update CHANGELOG.md and VERSION

CHANGELOG.md

@@ -10,7 +10,7 @@ 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).
 
-## [Unrelease]
+## [v0.8.0] - 2020-03-27
 ### Added
 - Add mod_trace for distributed tracing based on zipkin
 - Add mod_doh for processing DNS over HTTPS(DoH) requests
@@ -128,7 +128,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Flexible plugin framework to extend functionality. Based on the framework, developer can add new features rapidly
 - Detailed built-in metrics available for service status monitor
 
-[Unrelease]: https://github.com/baidu/bfe/compare/v0.6.0...HEAD
+[v0.8.0]: https://github.com/baidu/bfe/compare/v0.7.0...v0.8.0
 [v0.7.0]: https://github.com/baidu/bfe/compare/v0.6.0...v0.7.0
 [v0.6.0]: https://github.com/baidu/bfe/compare/v0.5.0...v0.6.0
 [v0.5.0]: https://github.com/baidu/bfe/compare/v0.4.0...v0.5.0

VERSION

@@ -1 +1 @@
-0.8.0-dev
+0.8.0