add 1.2.0 changelog

Author: trickMin

_posts/release-notes/2023-01-05-announcing-v1.2.0.md

@@ -0,0 +1,22 @@
+---
+layout: post
+title: Announcing Hango 1.2.0
+subtitle: Hango v1.2.0 release announcement.
+cover-img: /assets/img/cover/natual-scene-1.png
+thumbnail-img: /assets/img/hango/gateway.jpeg
+share-img: /assets/img/hango/gateway.jpeg
+tags: [release-notes]
+---
+
+本次更新是Hango正式版v1.2.0的发布。基于v1.0.0版本集成了dubbo bridge、基于SmartLimiter的自适应本地限流等功能
+
+### 新功能
+
+- [支持dubbo服务发现](https://github.com/hango-io/api-plane/pull/13)
+
+- [支持SmartLimiter的本地限流](https://github.com/hango-io/hango-gateway/pull/47)
+
+
+### 工程增强
+
+- [增加部分插件校验](https://github.com/hango-io/hango-gateway/pull/47)