@@ -32,8 +32,8 @@
     (repr, 'repr'),
     (ascii, 'ascii'),
 )
-MAKE_FUNCTION = opmap['MAKE_FUNCTION']
-MAKE_FUNCTION_FLAGS = ('defaults', 'kwdefaults', 'annotations', 'closure')
+SET_FUNCTION_ATTRIBUTE = opmap['SET_FUNCTION_ATTRIBUTE']
+FUNCTION_ATTR_FLAGS = ('defaults', 'kwdefaults', 'annotations', 'closure')
 
 LOAD_CONST = opmap['LOAD_CONST']
 RETURN_CONST = opmap['RETURN_CONST']
@@ -586,8 +586,8 @@ def _get_instructions_bytes(code, varname_from_oparg=None,
                     if argrepr:
                         argrepr += ', '
                     argrepr += 'with format'
-            elif deop == MAKE_FUNCTION:
-                argrepr = ', '.join(s for i, s in enumerate(MAKE_FUNCTION_FLAGS)
+            elif deop == SET_FUNCTION_ATTRIBUTE:
+                argrepr = ', '.join(s for i, s in enumerate(FUNCTION_ATTR_FLAGS)
                                     if arg & (1<<i))
             elif deop == BINARY_OP:
                 _, argrepr = _nb_ops[arg]
 
@@ -448,6 +448,8 @@ def _write_atomic(path, data, mode=0o666):
 #     Python 3.13a1 3550 (Plugin optimizer support)
 #     Python 3.13a1 3551 (Compact superinstructions)
 
+#     Python 3.13a1 3554 (Add SET_FUNCTION_ATTRIBUTE)
+
 #     Python 3.14 will start with 3600
 
 #     Please don't copy-paste the same pre-release tag for new entries above!!!
@@ -463,7 +465,7 @@ def _write_atomic(path, data, mode=0o666):
 # Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
 # in PC/launcher.c must also be updated.
 
-MAGIC_NUMBER = (3551).to_bytes(2, 'little') + b'\r\n'
+MAGIC_NUMBER = (3554).to_bytes(2, 'little') + b'\r\n'
 
 _RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little')  # For import.c
 
 
@@ -96,6 +96,7 @@ def pseudo_op(name, op, real_ops):
 # This helps us catch cases where we attempt to execute a cache.
 def_op('RESERVED', 17)
 
+def_op('MAKE_FUNCTION', 24)
 def_op('BINARY_SUBSCR', 25)
 def_op('BINARY_SLICE', 26)
 def_op('STORE_SLICE', 27)
@@ -183,7 +184,6 @@ def pseudo_op(name, op, real_ops):
 jrel_op('POP_JUMP_IF_NONE', 129)
 def_op('RAISE_VARARGS', 130)    # Number of raise arguments (1, 2, or 3)
 def_op('GET_AWAITABLE', 131)
-def_op('MAKE_FUNCTION', 132)    # Flags
 def_op('BUILD_SLICE', 133)      # Number of items
 jrel_op('JUMP_BACKWARD_NO_INTERRUPT', 134) # Number of words to skip (backwards)
 def_op('MAKE_CELL', 135)
@@ -234,6 +234,7 @@ def pseudo_op(name, op, real_ops):
 name_op('LOAD_FROM_DICT_OR_GLOBALS', 175)
 def_op('LOAD_FROM_DICT_OR_DEREF', 176)
 hasfree.append(176)
+def_op('SET_FUNCTION_ATTRIBUTE', 177)    # Attribute
 
 # Optimizer hook
 def_op('ENTER_EXECUTOR', 230)