--- libmalloc/libmalloc-409.40.6/private/malloc_private.h
+++ libmalloc/libmalloc-317.121.1/private/malloc_private.h
@@ -27,11 +27,7 @@
 /* Here be dragons (SPIs) */
 
 #include <mach/boolean.h>
-#include <mach/kern_return.h>
-#include <mach/mach_types.h>
 #include <sys/cdefs.h>
-#include <stddef.h>
-#include <stdint.h>
 #include <Availability.h>
 #include <os/availability.h>
 #include <malloc/malloc.h>
@@ -80,55 +76,16 @@
 API_AVAILABLE(macos(10.14), ios(12.0), tvos(12.0), watchos(5.0))
 int malloc_engaged_nano(void) __result_use_check;
 
-/*
- * Disables zero-on-free in a process.  This has security implications and is
- * intended to be used only as part of binary compatibility workarounds for
- * external code.  It should be called as early as possible in the process
- * lifetime, ideally before the process has gone multithreaded.  It is not
- * guaranteed to have any effect.
- */
-SPI_AVAILABLE(macos(13.0), ios(16.1), tvos(16.1), watchos(9.1))
-void malloc_zero_on_free_disable(void);
 
-/****** Thread-specific libmalloc options ******/
+/********* PGuard ************/
 
-/**
- * Options struct: zero means "default options".
- */
-typedef struct {
-	uintptr_t DisableExpensiveDebuggingOptions : 1;
-	uintptr_t DisableProbabilisticGuardMalloc : 1;
-	uintptr_t DisableMallocStackLogging : 1;
-} malloc_thread_options_t;
-
-API_AVAILABLE(macos(13.0), ios(16.0), tvos(16.0), watchos(9.0))
-malloc_thread_options_t malloc_get_thread_options(void) __result_use_check;
-
-API_AVAILABLE(macos(13.0), ios(16.0), tvos(16.0), watchos(9.0))
-void malloc_set_thread_options(malloc_thread_options_t opts);
-
-/****** Crash Reporter integration ******/
+const static uint32_t k_pguard_trace_max_frames = 16;
 
 typedef struct {
 	uint64_t thread_id;
-	uint64_t time;
 	uint32_t num_frames;
-	vm_address_t frames[64];
+	vm_address_t frames[k_pguard_trace_max_frames];
 } stack_trace_t;
-
-/**
- * Like memory_reader_t, but caller must free returned memory if not NULL.
- */
-typedef void *(*crash_reporter_memory_reader_t)(task_t task, vm_address_t address, size_t size);
-
-/****** Probabilistic Guard Malloc ******/
-
-/**
- * Never sample any allocations made by the current thread.
- *
- * DEPRECATED!  Use malloc_set_thread_options() instead.  Will be removed soon.
- */
-void pgm_disable_for_current_thread(void);
 
 typedef struct {
 	// diagnose_page_fault
@@ -140,25 +97,18 @@
 	size_t allocation_size;
 	const char *allocation_state;
 	uint32_t num_traces;
-	// fill_in_trace
 	stack_trace_t alloc_trace;
 	stack_trace_t dealloc_trace;
-} pgm_report_t;
+} pguard_report_t;
+typedef pguard_report_t pgm_report_t;
 
+/**
+ * Like memory_reader_t, but caller must free returned memory if not NULL.
+ */
+typedef void *(*crash_reporter_memory_reader_t)(task_t task, vm_address_t address, size_t size);
+
+API_AVAILABLE(macos(10.16), ios(14.0), tvos(14.0), watchos(7.0))
 kern_return_t pgm_diagnose_fault_from_crash_reporter(vm_address_t fault_address, pgm_report_t *report,
-		task_t task, vm_address_t zone_address, crash_reporter_memory_reader_t crm_reader) __result_use_check;
-
-/****** Quarantine Zone ******/
-
-typedef struct {
-	vm_address_t fault_address;
-	vm_address_t nearest_allocation;
-	size_t allocation_size;
-	stack_trace_t alloc_trace;
-	stack_trace_t dealloc_trace;
-} quarantine_report_t;
-
-kern_return_t quarantine_diagnose_fault_from_crash_reporter(vm_address_t fault_address, quarantine_report_t *report,
 		task_t task, vm_address_t zone_address, crash_reporter_memory_reader_t crm_reader) __result_use_check;