Changeset version bump (#3853)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Matt Rubens <[email protected]>

Author: github-actions[bot]

.changeset/cold-donuts-clean.md

@@ -1,5 +1,12 @@
 # Roo Code Changelog
 
+## [3.18.1] - 2025-05-22
+
+- Add support for Claude Sonnet 4 and Claude Opus 4 models with thinking variants in Anthropic, Bedrock, and Vertex (thanks @shariqriazz!)
+- Fix README gif display in all localized versions
+- Fix referer URL
+- Switch codebase to a monorepo and create an automated "nightly" build
+
 ## [3.18.0] - 2025-05-21
 
 - Add support for Gemini 2.5 Flash preview models (thanks @shariqriazz and @daniel-lxs!)

.changeset/little-pillows-type.md

@@ -3,7 +3,7 @@
 	"displayName": "%extension.displayName%",
 	"description": "%extension.description%",
 	"publisher": "RooVeterinaryInc",
-	"version": "3.18.0",
+	"version": "3.18.1",
 	"icon": "assets/icons/icon.png",
 	"galleryBanner": {
 		"color": "#617A91",