added docs.json, checks, + themes from february launches

Author: tiffany-mintlify

changelog/overview.mdx

@@ -3,7 +3,27 @@ title: "Product Updates"
 description: "New updates and improvements"
 mode: "center"
 ---
-<Update label = "January 2024"> 
+
+<Update label = "February 2025">
+
+## docs.json replacing mint.json
+Upgrades include better multi-level versioning, easier visual comprehension, and more consistent terminology. 
+
+[Update your Mintlify CLI](/settings/global). 
+
+## CI Checks
+Automatically lint your docs to find broken links, discover spelling and grammar issues, or enforce writing styles with your own Vale config. Learn more in our [docs](settings/ci). 
+
+## More Themes
+New pre-built themes to modify the look & feel of your docs. Configure via your [docs.json file](/settings/global). 
+
+Now available: 
+- Maple
+- Palm
+
+</Update>
+
+<Update label = "January 2025"> 
 
 ## AI Assistant Improvements
 - New UI with dedicated chat page & pre-filled prompts