Releases: remove var access calls

RELEASES.rst

@@ -1609,6 +1609,9 @@ Planned
 * Add a human readable summary of 'new MyConstructor()' constructor call
   target when the target is non-constructable (GH-757)
 
+* Remove duk_{get,put,has,del}_var() calls from API header; they were not
+  fully implemented and not part of the documented public API (GH-762)
+
 * Internal change: rework shared internal string handling so that shared
   strings are plain string constants used in macro values, rather than
   being declared as actual symbols; this reduces compilation warnings with