Update CHANGELOG.md

Author: cristianoc

CHANGELOG.md

@@ -12,7 +12,12 @@
 
 # 10.1.0-rc.1
 
+## :rocket: New Feature
+
+- Add extra variants for output filename suffixes in `bsconfig.json`: `.bs.mjs` and `.bs.cjs` are allowed https://github.com/rescript-lang/rescript-compiler/pull/5631
+
 #### :bug: Bug Fix
+
 - Fix location issue in error messages with JSX V4 where the multiple props types are defined https://github.com/rescript-lang/syntax/pull/655
 - Fix location issue in make function in JSX V4 that breaks dead code elimination https://github.com/rescript-lang/syntax/pull/660