v0.18.0 release notes (#7185)

### What problem does this PR solve?

_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._

### Type of change

- [x] Documentation Update

docs/guides/dataset/enable_raptor.md

@@ -43,7 +43,7 @@ The system's default chat model is used to summarize clustered content. Before p
 
 ## Configurations
 
-On the **Configuration** page of your knowledge base, the **Use RAPTOR to enhance retrieval** toggle is disabled by default.
+The RAPTOR feature is disabled by default. To enable it, manually switch on the **Use RAPTOR to enhance retrieval** toggle on your knowledge base's **Configuration** page.
 
 ### Prompt
 
@@ -71,4 +71,4 @@ The maximum number of clusters to create. Defaults to 108, with a maximum limit
 
 ### Random seed
 
-A random seed. Click **+** button to change the seed value.
+A random seed. Click the **+** button to change the seed value.

docs/release_notes.md

@@ -7,6 +7,24 @@ slug: /release_notes
 
 Key features, improvements and bug fixes in the latest releases.
 
+## v0.18.0
+
+Released on April 22, 2025.
+
+### New features
+
+- MCP server: enables access to RAGFlow's knowledge bases via MCP.
+- DeepDoc supports adopting VLM model as a processing pipeline during document layout recognition, enabling in-depth analysis of images in PDFs.
+- Agent version control: all updates are continuously logged and can be rolled back to a previous version via export.
+- Team collaboration: Agents can be shared with team members.
+- OpenAI-compatible APIs: Agents can be called via OpenAI-compatible APIs.
+- User registration control: administrators can enable or disable user registration through an environment variable.
+
+### Improvements
+
+- Enhanced answer referencing: Citation accuracy in generated responses is improved.
+- Enhanced question-answering experience: users can now manually stop streaming output during a conversation.
+
 ## v0.17.2
 
 Released on March 13, 2025.