Update version to 1.2.2

readme.txt

@@ -3,9 +3,9 @@ Contributors: shenyanzhi
 Donate link: https://qq52o.me/sponsor.html
 Tags: oss, 阿里云, 对象存储, aliyun
 Requires at least: 4.2
-Tested up to: 5.5
+Tested up to: 5.6
 Requires PHP: 5.6.0
-Stable tag: 1.2.1
+Stable tag: 1.2.2
 License: Apache 2.0
 License URI: http://www.apache.org/licenses/LICENSE-2.0.html
 
@@ -71,6 +71,11 @@ License URI: http://www.apache.org/licenses/LICENSE-2.0.html
 
 == Changelog ==
 
+= 1.2.2 =
+* 支持 WordPress 5.6 版本
+* 升级 OSS SDK
+* 修复勾选不上传缩略图删除时不会删除已存在的缩略图
+
 = 1.2.1 =
 * 支持阿里云OSS图片处理