Update CHANGELOG

Author: cknitt

CHANGELOG.md

@@ -17,6 +17,10 @@
 - Introduced a new `%ffi` extension that provides a more robust mechanism for JavaScript function interoperation by considering function arity in type constraints. This enhancement improves safety when dealing with JavaScript functions by enforcing type constraints based on the arity of the function. [PR #6251](https://github.com/rescript-lang/rescript-compiler/pull/6251)
 - Extended untagged variants with function types https://github.com/rescript-lang/rescript-compiler/pull/6279
 
+#### :boom: Breaking Change
+
+- Remove rudimentary node bindings and undocumented `%node` extension. https://github.com/rescript-lang/rescript-compiler/pull/6285
+
 #### :bug: Bug Fix
 
 - Fix issue where uncurried type internals leak in type error. https://github.com/rescript-lang/rescript-compiler/pull/6264