diff --git a/docs-2.0/2.quick-start/1.quick-start-workflow.md b/docs-2.0/2.quick-start/1.quick-start-workflow.md
index f4db47ee898..882f09d8f62 100644
--- a/docs-2.0/2.quick-start/1.quick-start-workflow.md
+++ b/docs-2.0/2.quick-start/1.quick-start-workflow.md
@@ -28,9 +28,12 @@
 
 ### 热点视频
 
+<!--
 * [听吴敏博士聊 Nebula Graph](https://www.bilibili.com/video/BV14U4y157zc)（37 分 40 秒）
 
 <iframe src="//player.bilibili.com/player.html?aid=673642782&bvid=BV14U4y157zc&cid=355543912&page=1&high_quality=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="720px" height="480px"> </iframe>
+-->
+
 
 * [Foesa 小学姐课堂——Nebula Graph 那些磨人的概念](https://www.bilibili.com/video/BV1Q5411K7Gg)（04 分 20 秒）
 
@@ -39,19 +42,24 @@
 * [Foesa 小学姐课堂——path 的三种类型](https://www.bilibili.com/video/BV1Uf4y1t72L)（03 分 09 秒）
 <iframe src="//player.bilibili.com/player.html?aid=291311326&bvid=BV1Uf4y1t72L&cid=361000311&page=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="720px" height="480px"> </iframe>
 
+<!--
 ### 入门系列
 
 * [Nebula Graph Studio 图探索](https://www.bilibili.com/video/BV1QN411Z7Vh)（03 分 23 秒）
 
 <iframe src="//player.bilibili.com/player.html?aid=503286771&bvid=BV1QN411Z7Vh&cid=344349765&page=1&high_quality=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="720px" height="480px"> </iframe>
 
+
 * [Nebula Exchange](https://www.bilibili.com/video/BV1Pq4y177D9)（03 分 08 秒）
 
 <iframe src="//player.bilibili.com/player.html?aid=546003709&bvid=BV1Pq4y177D9&cid=352387808&page=1&high_quality=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="720px" height="480px"> </iframe>
 
+
 * [Nebula Algorithm](https://www.bilibili.com/video/BV1fB4y1T7XK)（02 分 36 秒）
 
 <iframe src="//player.bilibili.com/player.html?aid=588577467&bvid=BV1fB4y1T7XK&cid=351282857&page=1&high_quality=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="720px" height="480px"> </iframe>
+-->
+
 
 ### NG 辅导班
 
diff --git a/docs-2.0/4.deployment-and-installation/3.upgrade-nebula-graph/upgrade-nebula-graph-to-latest.md b/docs-2.0/4.deployment-and-installation/3.upgrade-nebula-graph/upgrade-nebula-graph-to-latest.md
index 0531e1535d1..f680def8b01 100644
--- a/docs-2.0/4.deployment-and-installation/3.upgrade-nebula-graph/upgrade-nebula-graph-to-latest.md
+++ b/docs-2.0/4.deployment-and-installation/3.upgrade-nebula-graph/upgrade-nebula-graph-to-latest.md
@@ -44,6 +44,16 @@
 
   少数配置参数发生改变，详情参考版本发布说明和参数文档。
 
+- 语法变化
+
+  nGQL 语法有部分不兼容：
+
+  - 禁用`YIELD`子句返回自定义变量。
+
+  - `FETCH`、`GO`、`LOOKUP`、`FIND PATH`、`GET SUBGRAPH`语句中必须添加`YIELD`子句。
+
+  - MATCH 语句中获取点属性时，必须指定 Tag，例如从`return v.name`变为`return v.player.name`。
+
 !!! caution
 
     可能存在其它暂未发现的影响，建议升级前详细查看版本发布说明和产品手册，并密切关注[论坛](https://discuss.nebula-graph.com.cn/)与 [GitHub](https://github.com/vesoft-inc/nebula/issues) 的最新动态。