make the announcement

Author: Howon Lee

Diff for: docs/changelog.md

@@ -5,6 +5,18 @@ description: The latest updates and changes to CodeRabbit.
 sidebar_position: 13
 ---
 
+## March 12, 2025
+
+### Mult-Step Agent Chat
+
+```mdx-code-block
+import ProPlanNotice from '@site/src/components/ProPlanNotice.mdx';
+
+<ProPlanNotice />
+```
+
+We're excited to announce that CodeRabbit chat can now do agentic planning on Github. This functionality allows more sophisticated request to be made of CodeRabbit chat spanning multiple files. Comment with `@coderabbitai` a natural language request on any pull request with a review comment, asking for a code change, and the chat will plan code changes if they are complex.
+
 ## February 25, 2025
 
 ### Docstrings

Diff for: docs/guides/agent_chat.md

@@ -53,7 +53,7 @@ When facing complex coding challenges, CodeRabbit Chat supports multi-step agent
 
 CodeRabbit cannot perform further modifications to opened pull requests. From there, it's your turn to checkout the branch and improve it to satisfaction. We believe that this workflow provides a significant headstart to implementing code.
 
-Multi-step agentic flows are currently only available on Github. Multi-step agentic flows are an early access product currently.
+Multi-step agentic flows are currently only available on Github pull request review comments. Multi-step agentic flows are an early access product currently.
 
 ### Configuration Changes