Updated CHANGELOG.md

Author: konakonall

CHANGELOG.md

@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
+## [v0.7.20](https://github.com/tencentyun/cos-go-sdk-v5/compare/v0.7.19...v0.7.20) - 2021-02-25
+
+fix multicopy and multiupload send on closed channel error
+
+### Merged
+
+- fix multicopy and multiupload send on closed channel panic [`#104`](https://github.com/tencentyun/cos-go-sdk-v5/pull/104)
+- update DividePart to 64M [`#103`](https://github.com/tencentyun/cos-go-sdk-v5/pull/103)
+- update test [`#102`](https://github.com/tencentyun/cos-go-sdk-v5/pull/102)
+
+### Commits
+
+- Updated CHANGELOG.md [`eb667d9`](https://github.com/tencentyun/cos-go-sdk-v5/commit/eb667d9ed9fae2a338bee4fffc84381d00dec897)
+
 ## [v0.7.19](https://github.com/tencentyun/cos-go-sdk-v5/compare/v0.7.18...v0.7.19) - 2021-02-01
 
 Add Get Object Optional Header && Add Test