Add NEWS.

Author: nascheme

Misc/NEWS.d/next/Core_and_Builtins/2025-12-24-13-19-16.gh-issue-132657._P4DDb.rst

@@ -0,0 +1,6 @@
+If we are specializing to :opcode:`LOAD_GLOBAL_MODULE` or
+:opcode:`LOAD_ATTR_MODULE`, try to enable deferred reference counting for
+the value, if the object is owned by a different thread.  This applies to
+the free-threaded build only and will improve scaling of multi-threaded
+programs. Note that when deferred reference counting is enabled, the object
+will be deallocated by the GC, rather than by :c:func:`Py_DECREF`.