--- libmalloc/libmalloc-409.81.2/include/malloc/malloc.h
+++ libmalloc/libmalloc-166.220.1/include/malloc/malloc.h
@@ -97,10 +97,6 @@
 	 * not yet been allocated. False negatives are not allowed.
 	 */
     boolean_t (* MALLOC_ZONE_FN_PTR(claimed_address))(struct _malloc_zone_t *zone, void *ptr);
-
-    /* For zone 0 implementations: try to free ptr, promising to call find_zone_and_free
-     * if it turns out not to belong to us */
-    void 	(* MALLOC_ZONE_FN_PTR(try_free_default))(struct _malloc_zone_t *zone, void *ptr);
 } malloc_zone_t;
 
 /*********	Creation and destruction	************/
@@ -218,9 +214,6 @@
 
 typedef void vm_range_recorder_t(task_t, void *, unsigned type, vm_range_t *, unsigned);
     /* given a task and context, "records" the specified addresses */
-
-/* Print function for the print_task() operation. */
-typedef void print_task_printer_t(const char *fmt, ...) __printflike(1,2);
 
 typedef struct malloc_introspection_t {
 	kern_return_t (* MALLOC_INTROSPECT_FN_PTR(enumerator))(task_t task, void *, unsigned type_mask, vm_address_t zone_address, memory_reader_t reader, vm_range_recorder_t recorder); /* enumerates all the malloc pointers in use */
@@ -243,13 +236,7 @@
     void	*enumerate_unavailable_without_blocks;   
 #endif /* __BLOCKS__ */
 	void	(* MALLOC_INTROSPECT_FN_PTR(reinit_lock))(malloc_zone_t *zone); /* Reinitialize zone locks, called only from atfork_child handler. Present in version >= 9. */
-	void	(* MALLOC_INTROSPECT_FN_PTR(print_task))(task_t task, unsigned level, vm_address_t zone_address, memory_reader_t reader, print_task_printer_t printer); /* debug print for another process. Present in version >= 11. */
-	void (* MALLOC_INTROSPECT_FN_PTR(task_statistics))(task_t task, vm_address_t zone_address, memory_reader_t reader, malloc_statistics_t *stats); /* Present in version >= 12 */
 } malloc_introspection_t;
-
-// The value of "level" when passed to print_task() that corresponds to
-// verbose passed to print()
-#define MALLOC_VERBOSE_PRINT_LEVEL	2
 
 extern void malloc_printf(const char *format, ...);
     /* Convenience for logging errors and warnings;
@@ -313,37 +300,6 @@
 extern void malloc_zone_enumerate_discharged_pointers(malloc_zone_t *zone, void *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
 #endif /* __BLOCKS__ */
 
-/*********  Zone version summary ************/
-// Version 0, but optional:
-//   malloc_zone_t::batch_malloc
-//   malloc_zone_t::batch_free
-// Version 5:
-//   malloc_zone_t::memalign
-// Version 6:
-//   malloc_zone_t::free_definite_size
-// Version 7:
-//   malloc_introspection_t::enable_discharge_checking
-//   malloc_introspection_t::disable_discharge_checking
-//   malloc_introspection_t::discharge
-// Version 8:
-//   malloc_zone_t::pressure_relief
-// Version 9:
-//   malloc_introspection_t::reinit_lock
-// Version 10:
-//   malloc_zone_t::claimed_address
-// Version 11:
-//   malloc_introspection_t::print_task
-// Version 12:
-//   malloc_introspection_t::task_statistics
-// Version 13:
-//   - malloc_zone_t::malloc and malloc_zone_t::calloc assume responsibility for
-//     setting errno to ENOMEM on failure
-//   - malloc_zone_t::try_free_default
-
-// These functions are optional and calling them requires two checks:
-//  * Check zone version to ensure zone struct is large enough to include the member.
-//  * Check that the function pointer is not null.
-
 __END_DECLS
 
 #endif /* _MALLOC_MALLOC_H_ */