Releases: String.fromCharCode() fix

RELEASES.rst

@@ -1934,6 +1934,11 @@ Planned
   seed mixing; previous algorithm (Shamir's three-op algorithm) is still
   used for low memory targets and targets without 64-bit types (GH-970)
 
+* Fix String.fromCharCode() behavior for non-BMP characters when standard
+  behavior is enabled (DUK_USE_NONSTD_STRING_FROMCHARCODE_32BIT disabled):
+  use ToUint16() + CESU-8 rather than ToUint32() + CESU-8 which produces
+  two codepoints for non-BMP characters (GH-1046)
+
 * Fix incorrect evaluation order of X <op>= Y expressions when the RHS
   (Y) mutates the value of X (GH-992)