Issue #25380: Fixed protocol for the STACK_GLOBAL opcode in

pickletools.opcodes.

Lib/pickletools.py

@@ -1898,7 +1898,7 @@ opcodes = [
       arg=None,
       stack_before=[pyunicode, pyunicode],
       stack_after=[anyobject],
-      proto=0,
+      proto=4,
       doc="""Push a global object (module.attr) on the stack.
       """),
 

Misc/NEWS

@@ -96,6 +96,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #25380: Fixed protocol for the STACK_GLOBAL opcode in
+  pickletools.opcodes.
+
 - Issue #23972: Updates asyncio datagram create method allowing reuseport
   and reuseaddr socket options to be set prior to binding the socket.
   Mirroring the existing asyncio create_server method the reuseaddr option