diff --git a/src/client/ios/handler/ios_exception_minidump_generator.mm b/src/client/ios/handler/ios_exception_minidump_generator.mm
index 82ea5bb5..f57bdf21 100644
--- a/src/client/ios/handler/ios_exception_minidump_generator.mm
+++ b/src/client/ios/handler/ios_exception_minidump_generator.mm
@@ -108,13 +108,13 @@ bool IosExceptionMinidumpGenerator::WriteCrashingContextARM(
 #ifdef HAS_ARM64_SUPPORT
 bool IosExceptionMinidumpGenerator::WriteCrashingContextARM64(
     MDLocationDescriptor *register_location) {
-  TypedMDRVA<MDRawContextARM64> context(&writer_);
+  TypedMDRVA<MDRawContextARM64_Old> context(&writer_);
   if (!context.Allocate())
     return false;
   *register_location = context.location();
-  MDRawContextARM64 *context_ptr = context.get();
+  MDRawContextARM64_Old *context_ptr = context.get();
   memset(context_ptr, 0, sizeof(*context_ptr));
-  context_ptr->context_flags = MD_CONTEXT_ARM64_FULL;
+  context_ptr->context_flags = MD_CONTEXT_ARM64_FULL_OLD;
   context_ptr->iregs[MD_CONTEXT_ARM64_REG_FP] = kExpectedFinalFp;      // FP
   context_ptr->iregs[MD_CONTEXT_ARM64_REG_SP] = kExpectedFinalSp;      // SP
   context_ptr->iregs[MD_CONTEXT_ARM64_REG_LR] = GetLRFromException();  // LR
diff --git a/src/client/linux/dump_writer_common/raw_context_cpu.h b/src/client/linux/dump_writer_common/raw_context_cpu.h
index e2ef45df..07d9171a 100644
--- a/src/client/linux/dump_writer_common/raw_context_cpu.h
+++ b/src/client/linux/dump_writer_common/raw_context_cpu.h
@@ -41,7 +41,7 @@ typedef MDRawContextAMD64 RawContextCPU;
 #elif defined(__ARM_EABI__)
 typedef MDRawContextARM RawContextCPU;
 #elif defined(__aarch64__)
-typedef MDRawContextARM64 RawContextCPU;
+typedef MDRawContextARM64_Old RawContextCPU;
 #elif defined(__mips__)
 typedef MDRawContextMIPS RawContextCPU;
 #else
diff --git a/src/client/linux/dump_writer_common/thread_info.cc b/src/client/linux/dump_writer_common/thread_info.cc
index 0a1041d6..aae1dc13 100644
--- a/src/client/linux/dump_writer_common/thread_info.cc
+++ b/src/client/linux/dump_writer_common/thread_info.cc
@@ -214,7 +214,7 @@ uintptr_t ThreadInfo::GetInstructionPointer() const {
 }
 
 void ThreadInfo::FillCPUContext(RawContextCPU* out) const {
-  out->context_flags = MD_CONTEXT_ARM64_FULL;
+  out->context_flags = MD_CONTEXT_ARM64_FULL_OLD;
 
   out->cpsr = static_cast<uint32_t>(regs.pstate);
   for (int i = 0; i < MD_CONTEXT_ARM64_REG_SP; ++i)
diff --git a/src/client/linux/dump_writer_common/ucontext_reader.cc b/src/client/linux/dump_writer_common/ucontext_reader.cc
index 052ce37c..6ee6cc1e 100644
--- a/src/client/linux/dump_writer_common/ucontext_reader.cc
+++ b/src/client/linux/dump_writer_common/ucontext_reader.cc
@@ -194,7 +194,7 @@ uintptr_t UContextReader::GetInstructionPointer(const ucontext_t* uc) {
 
 void UContextReader::FillCPUContext(RawContextCPU *out, const ucontext_t *uc,
                                     const struct fpsimd_context* fpregs) {
-  out->context_flags = MD_CONTEXT_ARM64_FULL;
+  out->context_flags = MD_CONTEXT_ARM64_FULL_OLD;
 
   out->cpsr = static_cast<uint32_t>(uc->uc_mcontext.pstate);
   for (int i = 0; i < MD_CONTEXT_ARM64_REG_SP; ++i)
diff --git a/src/client/linux/minidump_writer/minidump_writer.cc b/src/client/linux/minidump_writer/minidump_writer.cc
index cdf4bf65..31e7bd62 100644
--- a/src/client/linux/minidump_writer/minidump_writer.cc
+++ b/src/client/linux/minidump_writer/minidump_writer.cc
@@ -1042,7 +1042,7 @@ class MinidumpWriter {
     // processor_architecture should always be set, do this first
     sys_info->processor_architecture =
 #if defined(__aarch64__)
-        MD_CPU_ARCHITECTURE_ARM64;
+        MD_CPU_ARCHITECTURE_ARM64_OLD;
 #else
         MD_CPU_ARCHITECTURE_ARM;
 #endif
diff --git a/src/client/mac/handler/minidump_generator.cc b/src/client/mac/handler/minidump_generator.cc
index 48cd2e99..8c796243 100644
--- a/src/client/mac/handler/minidump_generator.cc
+++ b/src/client/mac/handler/minidump_generator.cc
@@ -545,7 +545,7 @@ bool
 MinidumpGenerator::WriteContextARM64(breakpad_thread_state_data_t state,
                                      MDLocationDescriptor *register_location)
 {
-  TypedMDRVA<MDRawContextARM64> context(&writer_);
+  TypedMDRVA<MDRawContextARM64_Old> context(&writer_);
   arm_thread_state64_t *machine_state =
       reinterpret_cast<arm_thread_state64_t *>(state);
 
@@ -553,8 +553,8 @@ MinidumpGenerator::WriteContextARM64(breakpad_thread_state_data_t state,
     return false;
 
   *register_location = context.location();
-  MDRawContextARM64 *context_ptr = context.get();
-  context_ptr->context_flags = MD_CONTEXT_ARM64_FULL;
+  MDRawContextARM64_Old *context_ptr = context.get();
+  context_ptr->context_flags = MD_CONTEXT_ARM64_FULL_OLD;
 
 #define AddGPR(a) context_ptr->iregs[a] = \
     REGISTER_FROM_THREADSTATE(machine_state, x[a])
@@ -1191,7 +1191,7 @@ bool MinidumpGenerator::WriteSystemInfoStream(
 #endif
 #ifdef HAS_ARM64_SUPPORT
     case CPU_TYPE_ARM64:
-      info_ptr->processor_architecture = MD_CPU_ARCHITECTURE_ARM64;
+      info_ptr->processor_architecture = MD_CPU_ARCHITECTURE_ARM64_OLD;
       break;
 #endif
 #ifdef HAS_PPC_SUPPORT
diff --git a/src/google_breakpad/common/minidump_cpu_arm64.h b/src/google_breakpad/common/minidump_cpu_arm64.h
index 5ace0d9d..e146ec99 100644
--- a/src/google_breakpad/common/minidump_cpu_arm64.h
+++ b/src/google_breakpad/common/minidump_cpu_arm64.h
@@ -74,7 +74,7 @@ typedef struct {
 
   /* 32 128-bit floating point registers, d0 .. d31. */
   uint128_struct regs[MD_FLOATINGSAVEAREA_ARM64_FPR_COUNT];
-} MDFloatingSaveAreaARM64;
+} MDFloatingSaveAreaARM64_Old;
 
 #define MD_CONTEXT_ARM64_GPR_COUNT 33
 
@@ -107,9 +107,9 @@ typedef struct {
   uint32_t    cpsr;
 
   /* The next field is included with MD_CONTEXT64_ARM_FLOATING_POINT */
-  MDFloatingSaveAreaARM64 float_save;
+  MDFloatingSaveAreaARM64_Old float_save;
 
-} MDRawContextARM64;
+} MDRawContextARM64_Old;
 
 #pragma pack(pop)
 
@@ -123,18 +123,18 @@ enum MDARM64RegisterNumbers {
   MD_CONTEXT_ARM64_REG_PC     = 32
 };
 
-/* For (MDRawContextARM64).context_flags.  These values indicate the type of
- * context stored in the structure. MD_CONTEXT_ARM64 is Breakpad-defined.
+/* For (MDRawContextARM64_Old).context_flags.  These values indicate the type of
+ * context stored in the structure. MD_CONTEXT_ARM64_OLD is Breakpad-defined.
  * This value was chosen to avoid likely conflicts with MD_CONTEXT_*
  * for other CPUs. */
-#define MD_CONTEXT_ARM64                   0x80000000
-#define MD_CONTEXT_ARM64_INTEGER           (MD_CONTEXT_ARM64 | 0x00000002)
-#define MD_CONTEXT_ARM64_FLOATING_POINT    (MD_CONTEXT_ARM64 | 0x00000004)
+#define MD_CONTEXT_ARM64_OLD                   0x80000000
+#define MD_CONTEXT_ARM64_INTEGER_OLD           (MD_CONTEXT_ARM64_OLD | 0x00000002)
+#define MD_CONTEXT_ARM64_FLOATING_POINT_OLD    (MD_CONTEXT_ARM64_OLD | 0x00000004)
 
-#define MD_CONTEXT_ARM64_FULL              (MD_CONTEXT_ARM64_INTEGER | \
-                                          MD_CONTEXT_ARM64_FLOATING_POINT)
+#define MD_CONTEXT_ARM64_FULL_OLD              (MD_CONTEXT_ARM64_INTEGER_OLD | \
+                                          MD_CONTEXT_ARM64_FLOATING_POINT_OLD)
 
-#define MD_CONTEXT_ARM64_ALL               (MD_CONTEXT_ARM64_INTEGER | \
-                                          MD_CONTEXT_ARM64_FLOATING_POINT)
+#define MD_CONTEXT_ARM64_ALL_OLD               (MD_CONTEXT_ARM64_INTEGER_OLD | \
+                                          MD_CONTEXT_ARM64_FLOATING_POINT_OLD)
 
 #endif  /* GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_ARM64_H__ */
diff --git a/src/google_breakpad/common/minidump_format.h b/src/google_breakpad/common/minidump_format.h
index 225433bb..9db7049a 100644
--- a/src/google_breakpad/common/minidump_format.h
+++ b/src/google_breakpad/common/minidump_format.h
@@ -656,7 +656,7 @@ typedef enum {
       /* PROCESSOR_ARCHITECTURE_IA32_ON_WIN64 (WoW64) */
   MD_CPU_ARCHITECTURE_SPARC     = 0x8001, /* Breakpad-defined value for SPARC */
   MD_CPU_ARCHITECTURE_PPC64     = 0x8002, /* Breakpad-defined value for PPC64 */
-  MD_CPU_ARCHITECTURE_ARM64     = 0x8003, /* Breakpad-defined value for ARM64 */
+  MD_CPU_ARCHITECTURE_ARM64_OLD = 0x8003, /* Breakpad-defined value for ARM64 */
   MD_CPU_ARCHITECTURE_MIPS64    = 0x8004, /* Breakpad-defined value for MIPS64 */
   MD_CPU_ARCHITECTURE_UNKNOWN   = 0xffff  /* PROCESSOR_ARCHITECTURE_UNKNOWN */
 } MDCPUArchitecture;
diff --git a/src/google_breakpad/processor/dump_context.h b/src/google_breakpad/processor/dump_context.h
index df80bf7e..455115e5 100644
--- a/src/google_breakpad/processor/dump_context.h
+++ b/src/google_breakpad/processor/dump_context.h
@@ -56,7 +56,7 @@ class DumpContext : public DumpObject {
   // context data does not match the CPU type or does not exist, returns NULL.
   const MDRawContextAMD64* GetContextAMD64() const;
   const MDRawContextARM*   GetContextARM() const;
-  const MDRawContextARM64* GetContextARM64() const;
+  const MDRawContextARM64_Old* GetContextARM64() const;
   const MDRawContextMIPS*  GetContextMIPS() const;
   const MDRawContextPPC*   GetContextPPC() const;
   const MDRawContextPPC64* GetContextPPC64() const;
@@ -85,7 +85,7 @@ class DumpContext : public DumpObject {
   void SetContextAMD64(MDRawContextAMD64* amd64);
   void SetContextSPARC(MDRawContextSPARC* ctx_sparc);
   void SetContextARM(MDRawContextARM* arm);
-  void SetContextARM64(MDRawContextARM64* arm64);
+  void SetContextARM64(MDRawContextARM64_Old* arm64);
   void SetContextMIPS(MDRawContextMIPS* ctx_mips);
 
   // Free the CPU-specific context structure.
@@ -103,7 +103,7 @@ class DumpContext : public DumpObject {
     // so variables can NOT be named as sparc
     MDRawContextSPARC* ctx_sparc;
     MDRawContextARM*   arm;
-    MDRawContextARM64* arm64;
+    MDRawContextARM64_Old* arm64_old;
     MDRawContextMIPS*  ctx_mips;
   } context_;
 
diff --git a/src/google_breakpad/processor/microdump.h b/src/google_breakpad/processor/microdump.h
index 02ebdcd7..496f83ce 100644
--- a/src/google_breakpad/processor/microdump.h
+++ b/src/google_breakpad/processor/microdump.h
@@ -68,7 +68,7 @@ class MicrodumpModules : public BasicCodeModules {
 class MicrodumpContext : public DumpContext {
  public:
   virtual void SetContextARM(MDRawContextARM* arm);
-  virtual void SetContextARM64(MDRawContextARM64* arm64);
+  virtual void SetContextARM64(MDRawContextARM64_Old* arm64);
   virtual void SetContextX86(MDRawContextX86* x86);
   virtual void SetContextMIPS(MDRawContextMIPS* mips32);
   virtual void SetContextMIPS64(MDRawContextMIPS* mips64);
diff --git a/src/google_breakpad/processor/stack_frame_cpu.h b/src/google_breakpad/processor/stack_frame_cpu.h
index dc5d8ae6..3b2551b5 100644
--- a/src/google_breakpad/processor/stack_frame_cpu.h
+++ b/src/google_breakpad/processor/stack_frame_cpu.h
@@ -327,7 +327,7 @@ struct StackFrameARM64 : public StackFrame {
   // stack.  In other frames, the values of nonvolatile registers may be
   // present, given sufficient debugging information.  Refer to
   // context_validity.
-  MDRawContextARM64 context;
+  MDRawContextARM64_Old context;
 
   // For each register in context whose value has been recovered, we set
   // the corresponding CONTEXT_VALID_ bit in context_validity.
diff --git a/src/processor/dump_context.cc b/src/processor/dump_context.cc
index 8dd671e6..198b9501 100644
--- a/src/processor/dump_context.cc
+++ b/src/processor/dump_context.cc
@@ -121,13 +121,13 @@ const MDRawContextARM* DumpContext::GetContextARM() const {
   return context_.arm;
 }
 
-const MDRawContextARM64* DumpContext::GetContextARM64() const {
-  if (GetContextCPU() != MD_CONTEXT_ARM64) {
+const MDRawContextARM64_Old* DumpContext::GetContextARM64() const {
+  if (GetContextCPU() != MD_CONTEXT_ARM64_OLD) {
     BPLOG(ERROR) << "DumpContext cannot get arm64 context";
     return NULL;
   }
 
-  return context_.arm64;
+  return context_.arm64_old;
 }
 
 const MDRawContextMIPS* DumpContext::GetContextMIPS() const {
@@ -157,7 +157,7 @@ bool DumpContext::GetInstructionPointer(uint64_t* ip) const {
   case MD_CONTEXT_ARM:
     *ip = GetContextARM()->iregs[MD_CONTEXT_ARM_REG_PC];
     break;
-  case MD_CONTEXT_ARM64:
+  case MD_CONTEXT_ARM64_OLD:
     *ip = GetContextARM64()->iregs[MD_CONTEXT_ARM64_REG_PC];
     break;
   case MD_CONTEXT_PPC:
@@ -201,7 +201,7 @@ bool DumpContext::GetStackPointer(uint64_t* sp) const {
   case MD_CONTEXT_ARM:
     *sp = GetContextARM()->iregs[MD_CONTEXT_ARM_REG_SP];
     break;
-  case MD_CONTEXT_ARM64:
+  case MD_CONTEXT_ARM64_OLD:
     *sp = GetContextARM64()->iregs[MD_CONTEXT_ARM64_REG_SP];
     break;
   case MD_CONTEXT_PPC:
@@ -256,8 +256,8 @@ void DumpContext::SetContextARM(MDRawContextARM* arm) {
   context_.arm = arm;
 }
 
-void DumpContext::SetContextARM64(MDRawContextARM64* arm64) {
-  context_.arm64 = arm64;
+void DumpContext::SetContextARM64(MDRawContextARM64_Old* arm64) {
+  context_.arm64_old = arm64;
 }
 
 void DumpContext::SetContextMIPS(MDRawContextMIPS* ctx_mips) {
@@ -290,8 +290,8 @@ void DumpContext::FreeContext() {
       delete context_.arm;
       break;
 
-    case MD_CONTEXT_ARM64:
-      delete context_.arm64;
+    case MD_CONTEXT_ARM64_OLD:
+      delete context_.arm64_old;
       break;
 
     case MD_CONTEXT_MIPS:
@@ -581,8 +581,8 @@ void DumpContext::Print() {
       break;
     }
 
-    case MD_CONTEXT_ARM64: {
-      const MDRawContextARM64* context_arm64 = GetContextARM64();
+    case MD_CONTEXT_ARM64_OLD: {
+      const MDRawContextARM64_Old* context_arm64 = GetContextARM64();
       printf("MDRawContextARM64\n");
       printf("  context_flags       = 0x%" PRIx64 "\n",
              context_arm64->context_flags);
diff --git a/src/processor/microdump.cc b/src/processor/microdump.cc
index 2473c35c..b100f765 100644
--- a/src/processor/microdump.cc
+++ b/src/processor/microdump.cc
@@ -125,8 +125,8 @@ void MicrodumpContext::SetContextARM(MDRawContextARM* arm) {
   valid_ = true;
 }
 
-void MicrodumpContext::SetContextARM64(MDRawContextARM64* arm64) {
-  DumpContext::SetContextFlags(MD_CONTEXT_ARM64);
+void MicrodumpContext::SetContextARM64(MDRawContextARM64_Old* arm64) {
+  DumpContext::SetContextFlags(MD_CONTEXT_ARM64_OLD);
   DumpContext::SetContextARM64(arm64);
   valid_ = true;
 }
@@ -311,13 +311,13 @@ Microdump::Microdump(const string& contents)
         memcpy(arm, &cpu_state_raw[0], cpu_state_raw.size());
         context_->SetContextARM(arm);
       } else if (strcmp(arch.c_str(), kArm64Architecture) == 0) {
-        if (cpu_state_raw.size() != sizeof(MDRawContextARM64)) {
+        if (cpu_state_raw.size() != sizeof(MDRawContextARM64_Old)) {
           std::cerr << "Malformed CPU context. Got " << cpu_state_raw.size()
-                    << " bytes instead of " << sizeof(MDRawContextARM64)
+                    << " bytes instead of " << sizeof(MDRawContextARM64_Old)
                     << std::endl;
           continue;
         }
-        MDRawContextARM64* arm = new MDRawContextARM64();
+        MDRawContextARM64_Old* arm = new MDRawContextARM64_Old();
         memcpy(arm, &cpu_state_raw[0], cpu_state_raw.size());
         context_->SetContextARM64(arm);
       } else if (strcmp(arch.c_str(), kX86Architecture) == 0) {
diff --git a/src/processor/minidump.cc b/src/processor/minidump.cc
index 606a5ddd..020b95d3 100644
--- a/src/processor/minidump.cc
+++ b/src/processor/minidump.cc
@@ -104,7 +104,7 @@ bool IsContextSizeUnique(uint32_t context_size) {
     num_matching_contexts++;
   if (context_size == sizeof(MDRawContextARM))
     num_matching_contexts++;
-  if (context_size == sizeof(MDRawContextARM64))
+  if (context_size == sizeof(MDRawContextARM64_Old))
     num_matching_contexts++;
   if (context_size == sizeof(MDRawContextMIPS))
     num_matching_contexts++;
@@ -471,8 +471,8 @@ bool MinidumpContext::Read(uint32_t expected_size) {
                  << "other raw context";
     return false;
   }
-  if (!IsContextSizeUnique(sizeof(MDRawContextARM64))) {
-    BPLOG(ERROR) << "sizeof(MDRawContextARM64) cannot match the size of any "
+  if (!IsContextSizeUnique(sizeof(MDRawContextARM64_Old))) {
+    BPLOG(ERROR) << "sizeof(MDRawContextARM64_Old) cannot match the size of any "
                  << "other raw context";
     return false;
   }
@@ -678,8 +678,8 @@ bool MinidumpContext::Read(uint32_t expected_size) {
     }
 
     SetContextPPC64(context_ppc64.release());
-  } else if (expected_size == sizeof(MDRawContextARM64)) {
-    // |context_flags| of MDRawContextARM64 is 64 bits, but other MDRawContext
+  } else if (expected_size == sizeof(MDRawContextARM64_Old)) {
+    // |context_flags| of MDRawContextARM64_Old is 64 bits, but other MDRawContext
     // in the else case have 32 bits |context_flags|, so special case it here.
     uint64_t context_flags;
 
@@ -692,7 +692,7 @@ bool MinidumpContext::Read(uint32_t expected_size) {
     if (minidump_->swap())
       Swap(&context_flags);
 
-    scoped_ptr<MDRawContextARM64> context_arm64(new MDRawContextARM64());
+    scoped_ptr<MDRawContextARM64_Old> context_arm64(new MDRawContextARM64_Old());
 
     uint32_t cpu_type = context_flags & MD_CONTEXT_CPU_MASK;
     if (cpu_type == 0) {
@@ -704,7 +704,7 @@ bool MinidumpContext::Read(uint32_t expected_size) {
       }
     }
 
-    if (cpu_type != MD_CONTEXT_ARM64) {
+    if (cpu_type != MD_CONTEXT_ARM64_OLD) {
       // TODO: Fall through to switch below.
       // https://bugs.chromium.org/p/google-breakpad/issues/detail?id=550
       BPLOG(ERROR) << "MinidumpContext not actually arm64 context";
@@ -720,7 +720,7 @@ bool MinidumpContext::Read(uint32_t expected_size) {
     uint8_t* context_after_flags =
         reinterpret_cast<uint8_t*>(context_arm64.get()) + flags_size;
     if (!minidump_->ReadBytes(context_after_flags,
-                              sizeof(MDRawContextARM64) - flags_size)) {
+                              sizeof(MDRawContextARM64_Old) - flags_size)) {
       BPLOG(ERROR) << "MinidumpContext could not read arm64 context";
       return false;
     }
@@ -1199,8 +1199,8 @@ bool MinidumpContext::CheckAgainstSystemInfo(uint32_t context_cpu_type) {
         return_value = true;
       break;
 
-    case MD_CONTEXT_ARM64:
-      if (system_info_cpu_type == MD_CPU_ARCHITECTURE_ARM64)
+    case MD_CONTEXT_ARM64_OLD:
+      if (system_info_cpu_type == MD_CPU_ARCHITECTURE_ARM64_OLD)
         return_value = true;
       break;
 
@@ -3487,7 +3487,7 @@ string MinidumpSystemInfo::GetCPU() {
       cpu = "arm";
       break;
 
-    case MD_CPU_ARCHITECTURE_ARM64:
+    case MD_CPU_ARCHITECTURE_ARM64_OLD:
       cpu = "arm64";
       break;
 
@@ -5086,8 +5086,8 @@ bool Minidump::GetContextCPUFlagsFromSystemInfo(uint32_t *context_cpu_flags) {
       case MD_CPU_ARCHITECTURE_ARM:
         *context_cpu_flags = MD_CONTEXT_ARM;
         break;
-      case MD_CPU_ARCHITECTURE_ARM64:
-        *context_cpu_flags = MD_CONTEXT_ARM64;
+      case MD_CPU_ARCHITECTURE_ARM64_OLD:
+        *context_cpu_flags = MD_CONTEXT_ARM64_OLD;
         break;
       case MD_CPU_ARCHITECTURE_IA64:
         *context_cpu_flags = MD_CONTEXT_IA64;
diff --git a/src/processor/minidump_processor.cc b/src/processor/minidump_processor.cc
index 2fe4fee7..431a2811 100644
--- a/src/processor/minidump_processor.cc
+++ b/src/processor/minidump_processor.cc
@@ -535,7 +535,7 @@ bool MinidumpProcessor::GetCPUInfo(Minidump *dump, SystemInfo *info) {
       break;
     }
 
-    case MD_CPU_ARCHITECTURE_ARM64: {
+    case MD_CPU_ARCHITECTURE_ARM64_OLD: {
       info->cpu = "arm64";
       break;
     }
@@ -735,7 +735,7 @@ string MinidumpProcessor::GetCrashReason(Minidump *dump, uint64_t *address) {
               if (raw_system_info->processor_architecture ==
                   MD_CPU_ARCHITECTURE_ARM ||
                   raw_system_info->processor_architecture ==
-                  MD_CPU_ARCHITECTURE_ARM64) {
+                  MD_CPU_ARCHITECTURE_ARM64_OLD) {
                 switch (exception_flags) {
                   case MD_EXCEPTION_CODE_MAC_ARM_DA_ALIGN:
                     reason.append("EXC_ARM_DA_ALIGN");
@@ -789,7 +789,7 @@ string MinidumpProcessor::GetCrashReason(Minidump *dump, uint64_t *address) {
           reason = "EXC_BAD_INSTRUCTION / ";
           switch (raw_system_info->processor_architecture) {
             case MD_CPU_ARCHITECTURE_ARM:
-            case MD_CPU_ARCHITECTURE_ARM64: {
+            case MD_CPU_ARCHITECTURE_ARM64_OLD: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_ARM_UNDEFINED:
                   reason.append("EXC_ARM_UNDEFINED");
@@ -972,7 +972,7 @@ string MinidumpProcessor::GetCrashReason(Minidump *dump, uint64_t *address) {
           reason = "EXC_BREAKPOINT / ";
           switch (raw_system_info->processor_architecture) {
             case MD_CPU_ARCHITECTURE_ARM:
-            case MD_CPU_ARCHITECTURE_ARM64: {
+            case MD_CPU_ARCHITECTURE_ARM64_OLD: {
               switch (exception_flags) {
                 case MD_EXCEPTION_CODE_MAC_ARM_DA_ALIGN:
                   reason.append("EXC_ARM_DA_ALIGN");
diff --git a/src/processor/stackwalker.cc b/src/processor/stackwalker.cc
index 4988ef1e..c7634ff0 100644
--- a/src/processor/stackwalker.cc
+++ b/src/processor/stackwalker.cc
@@ -259,7 +259,7 @@ Stackwalker* Stackwalker::StackwalkerForCPU(
       break;
     }
 
-    case MD_CONTEXT_ARM64:
+    case MD_CONTEXT_ARM64_OLD:
       cpu_stackwalker = new StackwalkerARM64(system_info,
                                              context->GetContextARM64(),
                                              memory, modules,
diff --git a/src/processor/stackwalker_arm64.cc b/src/processor/stackwalker_arm64.cc
index f9660112..042fd089 100644
--- a/src/processor/stackwalker_arm64.cc
+++ b/src/processor/stackwalker_arm64.cc
@@ -48,7 +48,7 @@ namespace google_breakpad {
 
 
 StackwalkerARM64::StackwalkerARM64(const SystemInfo* system_info,
-                                   const MDRawContextARM64* context,
+                                   const MDRawContextARM64_Old* context,
                                    MemoryRegion* memory,
                                    const CodeModules* modules,
                                    StackFrameSymbolizer* resolver_helper)
diff --git a/src/processor/stackwalker_arm64.h b/src/processor/stackwalker_arm64.h
index 121e8246..1b01f21e 100644
--- a/src/processor/stackwalker_arm64.h
+++ b/src/processor/stackwalker_arm64.h
@@ -55,7 +55,7 @@ class StackwalkerARM64 : public Stackwalker {
   // included in the stack.  The other arguments are passed directly through
   // to the base Stackwalker constructor.
   StackwalkerARM64(const SystemInfo* system_info,
-                   const MDRawContextARM64* context,
+                   const MDRawContextARM64_Old* context,
                    MemoryRegion* memory,
                    const CodeModules* modules,
                    StackFrameSymbolizer* frame_symbolizer);
@@ -89,7 +89,7 @@ class StackwalkerARM64 : public Stackwalker {
 
   // Stores the CPU context corresponding to the youngest stack frame, to
   // be returned by GetContextFrame.
-  const MDRawContextARM64* context_;
+  const MDRawContextARM64_Old* context_;
 
   // Validity mask for youngest stack frame. This is always
   // CONTEXT_VALID_ALL in real use; it is only changeable for the sake of
diff --git a/src/processor/stackwalker_arm64_unittest.cc b/src/processor/stackwalker_arm64_unittest.cc
index f9d18cea..fff70744 100644
--- a/src/processor/stackwalker_arm64_unittest.cc
+++ b/src/processor/stackwalker_arm64_unittest.cc
@@ -122,14 +122,14 @@ class StackwalkerARM64Fixture {
   }
 
   // Fill RAW_CONTEXT with pseudo-random data, for round-trip checking.
-  void BrandContext(MDRawContextARM64 *raw_context) {
+  void BrandContext(MDRawContextARM64_Old *raw_context) {
     uint8_t x = 173;
     for (size_t i = 0; i < sizeof(*raw_context); i++)
       reinterpret_cast<uint8_t *>(raw_context)[i] = (x += 17);
   }
 
   SystemInfo system_info;
-  MDRawContextARM64 raw_context;
+  MDRawContextARM64_Old raw_context;
   Section stack_section;
   MockMemoryRegion stack_region;
   MockCodeModule module1;
@@ -688,7 +688,7 @@ struct CFIFixture: public StackwalkerARM64Fixture {
   }
 
   // The values we expect to find for the caller's registers.
-  MDRawContextARM64 expected;
+  MDRawContextARM64_Old expected;
 
   // The validity mask for expected.
   uint64_t expected_validity;
diff --git a/src/tools/linux/md2core/minidump-2-core.cc b/src/tools/linux/md2core/minidump-2-core.cc
index 8cc07a6e..cf9648f6 100644
--- a/src/tools/linux/md2core/minidump-2-core.cc
+++ b/src/tools/linux/md2core/minidump-2-core.cc
@@ -480,7 +480,7 @@ ParseThreadRegisters(CrashedProcess::Thread* thread,
 static void
 ParseThreadRegisters(CrashedProcess::Thread* thread,
                      const MinidumpMemoryRange& range) {
-  const MDRawContextARM64* rawregs = range.GetData<MDRawContextARM64>(0);
+  const MDRawContextARM64_Old* rawregs = range.GetData<MDRawContextARM64_Old>(0);
 
   for (int i = 0; i < 31; ++i)
     thread->regs.regs[i] = rawregs->iregs[i];
@@ -590,7 +590,7 @@ ParseSystemInfo(const Options& options, CrashedProcess* crashinfo,
     exit(1);
   }
 #elif defined(__aarch64__)
-  if (sysinfo->processor_architecture != MD_CPU_ARCHITECTURE_ARM64) {
+  if (sysinfo->processor_architecture != MD_CPU_ARCHITECTURE_ARM64_OLD) {
     fprintf(stderr,
             "This version of minidump-2-core only supports ARM (64bit).\n");
     exit(1);