diff --git a/tools/v8_gypfiles/features.gypi b/tools/v8_gypfiles/features.gypi
index 5aa7c3fb4d2927..ddeba2112f9310 100644
--- a/tools/v8_gypfiles/features.gypi
+++ b/tools/v8_gypfiles/features.gypi
@@ -63,11 +63,16 @@
         'is_component_build': 0,
       }],
       ['OS == "win" or OS == "mac"', {
-        # Sets -DSYSTEM_INSTRUMENTATION. Enables OS-dependent event tracing
+        # Sets -DENABLE_SYSTEM_INSTRUMENTATION. Enables OS-dependent event tracing
         'v8_enable_system_instrumentation': 1,
       }, {
         'v8_enable_system_instrumentation': 0,
       }],
+      ['OS == "win"', {
+        'v8_enable_etw_stack_walking': 1,
+      }, {
+        'v8_enable_etw_stack_walking': 0,
+      }]
     ],
     'is_debug%': 0,
 
@@ -219,17 +224,9 @@
     'v8_enable_zone_compression%': 0,
 
     # Enable the experimental V8 sandbox.
-    # Sets -DV8_SANDBOX.
+    # Sets -DV8_ENABLE_SANDBOX.
     'v8_enable_sandbox%': 0,
 
-    # Enable external pointer sandboxing. Requires v8_enable_sandbox.
-    # Sets -DV8_SANDBOXED_EXTERNAL_POINRTERS.
-    'v8_enable_sandboxed_external_pointers%': 0,
-
-    # Enable sandboxed pointers. Requires v8_enable_sandbox.
-    # Sets -DV8_SANDBOXED_POINTERS.
-    'v8_enable_sandboxed_pointers%': 0,
-
     # Experimental feature for collecting per-class zone memory stats.
     # Requires use_rtti = true
     'v8_enable_precise_zone_stats%': 0,
@@ -263,6 +260,10 @@
     # (incomplete and experimental).
     'v8_enable_cet_shadow_stack%': 0,
 
+    # Compile V8 using zlib as dependency.
+    # Sets -DV8_USE_ZLIB
+    'v8_use_zlib%': 1,
+
     # Variables from v8.gni
 
     # Enable ECMAScript Internationalization API. Enabling this feature will
@@ -323,13 +324,7 @@
         'defines': ['V8_COMPRESS_ZONES',],
       }],
       ['v8_enable_sandbox==1', {
-        'defines': ['V8_SANDBOX',],
-      }],
-      ['v8_enable_sandboxed_pointers==1', {
-        'defines': ['V8_SANDBOXED_POINTERS',],
-      }],
-      ['v8_enable_sandboxed_external_pointers==1', {
-        'defines': ['V8_SANDBOXED_EXTERNAL_POINTERS',],
+        'defines': ['V8_ENABLE_SANDBOX',],
       }],
       ['v8_enable_object_print==1', {
         'defines': ['OBJECT_PRINT',],
@@ -427,6 +422,9 @@
       ['v8_enable_cet_shadow_stack==1', {
         'defines': ['V8_ENABLE_CET_SHADOW_STACK',],
       }],
+      ['v8_use_zlib==1', {
+        'defines': ['V8_USE_ZLIB',],
+      }],
       ['v8_enable_precise_zone_stats==1', {
         'defines': ['V8_ENABLE_PRECISE_ZONE_STATS',],
       }],
@@ -439,6 +437,9 @@
       ['v8_enable_system_instrumentation==1', {
         'defines': ['V8_ENABLE_SYSTEM_INSTRUMENTATION',],
       }],
+      ['v8_enable_etw_stack_walking==1', {
+        'defines': ['V8_ENABLE_ETW_STACK_WALKING',],
+      }],
       ['v8_enable_webassembly==1', {
         'defines': ['V8_ENABLE_WEBASSEMBLY',],
       }],
diff --git a/tools/v8_gypfiles/inspector.gypi b/tools/v8_gypfiles/inspector.gypi
index bf792b8a852690..fbf6741ea159bd 100644
--- a/tools/v8_gypfiles/inspector.gypi
+++ b/tools/v8_gypfiles/inspector.gypi
@@ -6,8 +6,6 @@
   'variables': {
     'inspector_protocol_path': '<(V8_ROOT)/third_party/inspector_protocol',
     'inspector_protocol_files': [
-      '<(inspector_protocol_path)/lib/base_string_adapter_cc.template',
-      '<(inspector_protocol_path)/lib/base_string_adapter_h.template',
       '<(inspector_protocol_path)/lib/Forward_h.template',
       '<(inspector_protocol_path)/lib/Object_cpp.template',
       '<(inspector_protocol_path)/lib/Object_h.template',
diff --git a/tools/v8_gypfiles/toolchain.gypi b/tools/v8_gypfiles/toolchain.gypi
index 8ade60b4e3ee0d..7b10d0d47c0a37 100644
--- a/tools/v8_gypfiles/toolchain.gypi
+++ b/tools/v8_gypfiles/toolchain.gypi
@@ -347,8 +347,7 @@
           'V8_TARGET_ARCH_IA32',
         ],
       }],  # v8_target_arch=="ia32"
-      ['v8_target_arch=="mips" or v8_target_arch=="mipsel" \
-        or v8_target_arch=="mips64" or v8_target_arch=="mips64el"', {
+      ['v8_target_arch=="mips64" or v8_target_arch=="mips64el"', {
         'target_conditions': [
           ['_toolset=="target"', {
             'conditions': [
@@ -390,451 +389,6 @@
           }],  #'_toolset=="host"
         ],
       }],
-      ['v8_target_arch=="mips"', {
-        'defines': [
-          'V8_TARGET_ARCH_MIPS',
-        ],
-        'conditions': [
-          [ 'v8_can_use_fpu_instructions=="true"', {
-            'defines': [
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }],
-          [ 'v8_use_mips_abi_hardfloat=="true"', {
-            'defines': [
-              '__mips_hard_float=1',
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }, {
-            'defines': [
-              '__mips_soft_float=1'
-            ]
-          }],
-        ],
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'conditions': [
-              ['v8_target_arch==target_arch', {
-                # Target built with a Mips CXX compiler.
-                'cflags': [
-                  '-EB',
-                  '-Wno-error=array-bounds',  # Workaround https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
-                ],
-                'ldflags': ['-EB'],
-                'conditions': [
-                  [ 'v8_use_mips_abi_hardfloat=="true"', {
-                    'cflags': ['-mhard-float'],
-                    'ldflags': ['-mhard-float'],
-                  }, {
-                    'cflags': ['-msoft-float'],
-                    'ldflags': ['-msoft-float'],
-                  }],
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                    'cflags!': ['-mfp32', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r6'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r6'],
-                    'ldflags': ['-mips32r6'],
-                  }],
-                  ['mips_arch_variant=="r6" and mips_use_msa==1', {
-                    'defines': [ '_MIPS_MSA' ],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                        'cflags': ['-mfp64'],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                        'cflags': ['-mfpxx'],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                        'cflags': ['-mfp32'],
-                      }],
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r2'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r2'],
-                    'ldflags': ['-mips32r2'],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'defines': [
-                      'FPU_MODE_FP32',
-                    ],
-                    'cflags!': ['-mfp64', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32'],
-                    'ldflags': ['-mips32'],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                    'cflags!': ['-mfp64', '-mfp32'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32', '-mfpxx'],
-                    'ldflags': ['-mips32'],
-                  }],
-                ],
-              }, {
-                # 'v8_target_arch!=target_arch'
-                # Target not built with an MIPS CXX compiler (simulator build).
-                'conditions': [
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_arch_variant=="r6" and mips_use_msa==1', {
-                    'defines': [ '_MIPS_MSA' ],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                      }],
-                    ],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'defines': [
-                      'FPU_MODE_FP32',
-                    ],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                ],
-              }],
-            ],
-          }],  #_toolset=="target"
-          ['_toolset=="host"', {
-            'conditions': [
-              ['mips_arch_variant=="rx"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32RX',
-                  'FPU_MODE_FPXX',
-                ],
-              }],
-              ['mips_arch_variant=="r6"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32R6',
-                  'FPU_MODE_FP64',
-                ],
-              }],
-              ['mips_arch_variant=="r6" and mips_use_msa==1', {
-                'defines': [ '_MIPS_MSA' ],
-              }],
-              ['mips_arch_variant=="r2"', {
-                'conditions': [
-                  ['mips_fpu_mode=="fp64"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fpxx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fp32"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP32'
-                    ],
-                  }],
-                ],
-              }],
-              ['mips_arch_variant=="r1"', {
-                'defines': ['FPU_MODE_FP32',],
-              }],
-            ]
-          }],  #_toolset=="host"
-        ],
-      }],  # v8_target_arch=="mips"
-      ['v8_target_arch=="mipsel"', {
-        'defines': [
-          'V8_TARGET_ARCH_MIPS',
-        ],
-        'conditions': [
-          [ 'v8_can_use_fpu_instructions=="true"', {
-            'defines': [
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }],
-          [ 'v8_use_mips_abi_hardfloat=="true"', {
-            'defines': [
-              '__mips_hard_float=1',
-              'CAN_USE_FPU_INSTRUCTIONS',
-            ],
-          }, {
-            'defines': [
-              '__mips_soft_float=1'
-            ],
-          }],
-        ],
-        'target_conditions': [
-          ['_toolset=="target"', {
-            'conditions': [
-              ['v8_target_arch==target_arch', {
-                # Target built with a Mips CXX compiler.
-                'cflags': [
-                  '-EL',
-                  '-Wno-error=array-bounds',  # Workaround https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
-                ],
-                'ldflags': ['-EL'],
-                'conditions': [
-                  [ 'v8_use_mips_abi_hardfloat=="true"', {
-                    'cflags': ['-mhard-float'],
-                    'ldflags': ['-mhard-float'],
-                  }, {
-                    'cflags': ['-msoft-float'],
-                    'ldflags': ['-msoft-float'],
-                  }],
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                    'cflags!': ['-mfp32', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r6'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r6'],
-                    'ldflags': ['-mips32r6'],
-                  }],
-                  ['mips_arch_variant=="r6" and mips_use_msa==1', {
-                    'defines': [ '_MIPS_MSA' ],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                        'cflags': ['-mfp64'],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                        'cflags': ['-mfpxx'],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                        'cflags': ['-mfp32'],
-                      }],
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32r2'],
-                      }],
-                    ],
-                    'cflags': ['-mips32r2'],
-                    'ldflags': ['-mips32r2'],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'defines': [
-                      'FPU_MODE_FP32',
-                    ],
-                    'cflags!': ['-mfp64', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32'],
-                    'ldflags': ['-mips32'],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                    'cflags!': ['-mfp64', '-mfp32'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips32'],
-                      }],
-                    ],
-                    'cflags': ['-mips32', '-mfpxx'],
-                    'ldflags': ['-mips32'],
-                  }],
-                  ['mips_arch_variant=="loongson"', {
-                    'defines': [
-                      '_MIPS_ARCH_LOONGSON',
-                      'FPU_MODE_FP32',
-                    ],
-                    'cflags!': ['-mfp64', '-mfpxx'],
-                    'conditions': [
-                      [ 'clang==0', {
-                        'cflags': ['-Wa,-mips3'],
-                      }],
-                    ],
-                    'cflags': ['-mips3', '-mfp32'],
-                  }],
-                ],
-              }, {
-                # 'v8_target_arch!=target_arch'
-                # Target not built with an MIPS CXX compiler (simulator build).
-                'conditions': [
-                  ['mips_arch_variant=="r6"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R6',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_arch_variant=="r6" and mips_use_msa==1', {
-                    'defines': [ '_MIPS_MSA' ],
-                  }],
-                  ['mips_arch_variant=="r2"', {
-                    'conditions': [
-                      [ 'mips_fpu_mode=="fp64"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP64',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fpxx"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FPXX',
-                        ],
-                      }],
-                      ['mips_fpu_mode=="fp32"', {
-                        'defines': [
-                          '_MIPS_ARCH_MIPS32R2',
-                          'FPU_MODE_FP32',
-                        ],
-                      }],
-                    ],
-                  }],
-                  ['mips_arch_variant=="r1"', {
-                    'defines': [
-                      'FPU_MODE_FP32',
-                    ],
-                  }],
-                  ['mips_arch_variant=="rx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32RX',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                  ['mips_arch_variant=="loongson"', {
-                    'defines': [
-                      '_MIPS_ARCH_LOONGSON',
-                      'FPU_MODE_FP32',
-                    ],
-                  }],
-                ],
-              }],
-            ],
-          }], #_toolset=="target
-          ['_toolset=="host"', {
-            'conditions': [
-              ['mips_arch_variant=="rx"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32RX',
-                  'FPU_MODE_FPXX',
-                ],
-              }],
-              ['mips_arch_variant=="r6"', {
-                'defines': [
-                  '_MIPS_ARCH_MIPS32R6',
-                  'FPU_MODE_FP64',
-                ],
-              }],
-              ['mips_arch_variant=="r6" and mips_use_msa==1', {
-                'defines': [ '_MIPS_MSA' ],
-              }],
-              ['mips_arch_variant=="r2"', {
-                'conditions': [
-                  ['mips_fpu_mode=="fp64"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP64',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fpxx"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FPXX',
-                    ],
-                  }],
-                  ['mips_fpu_mode=="fp32"', {
-                    'defines': [
-                      '_MIPS_ARCH_MIPS32R2',
-                      'FPU_MODE_FP32'
-                    ],
-                  }],
-                ],
-              }],
-              ['mips_arch_variant=="r1"', {
-                'defines': ['FPU_MODE_FP32',],
-              }],
-              ['mips_arch_variant=="loongson"', {
-                'defines': [
-                  '_MIPS_ARCH_LOONGSON',
-                  'FPU_MODE_FP32',
-                ],
-              }],
-            ]
-          }],
-        ],
-      }],  # v8_target_arch=="mipsel"
       ['v8_target_arch=="mips64el" or v8_target_arch=="mips64"', {
         'defines': [
           'V8_TARGET_ARCH_MIPS64',
@@ -1029,7 +583,6 @@
       ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \
          or OS=="netbsd" or OS=="mac" or OS=="android" or OS=="qnx") and \
         (v8_target_arch=="arm" or v8_target_arch=="ia32" or \
-         v8_target_arch=="mips" or v8_target_arch=="mipsel" or \
          v8_target_arch=="ppc")', {
         'target_conditions': [
           ['_toolset=="host"', {
diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
index 42e26cd9987cc5..6fc63aa88fb6e6 100644
--- a/tools/v8_gypfiles/v8.gyp
+++ b/tools/v8_gypfiles/v8.gyp
@@ -21,7 +21,10 @@
     'torque_outputs_inl_inc': ['<!@pymod_do_main(ForEachFormat "<(SHARED_INTERMEDIATE_DIR)/torque-generated/%s-inl.inc" <@(torque_files_replaced))'],
     'torque_outputs_cc': ['<!@pymod_do_main(ForEachFormat "<(SHARED_INTERMEDIATE_DIR)/torque-generated/%s.cc" <@(torque_files_replaced))'],
     'torque_outputs_inc': ['<!@pymod_do_main(ForEachFormat "<(SHARED_INTERMEDIATE_DIR)/torque-generated/%s.inc" <@(torque_files_replaced))'],
-    'v8_compiler_sources': ['<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_compiler_sources = ")'],
+    'v8_compiler_sources': [
+      '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_compiler_sources = ")',
+      '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_source_set.\\"v8_turboshaft.*?sources = ")',
+    ],
     'conditions': [
       ['v8_enable_i18n_support==1', {
         'torque_files': [
@@ -282,14 +285,9 @@
             '<(V8_ROOT)/src/builtins/arm64/builtins-arm64.cc',
           ],
         }],
-        ['v8_target_arch=="mips" or v8_target_arch=="mipsel"', {
-          'sources': [
-            '<(V8_ROOT)/src/builtins/mips/builtins-mips.cc',
-          ],
-        }],
         ['v8_target_arch=="riscv64" or v8_target_arch=="riscv64"', {
           'sources': [
-            '<(V8_ROOT)/src/builtins/riscv64/builtins-riscv64.cc',
+            '<(V8_ROOT)/src/builtins/riscv/builtins-riscv.cc',
           ],
         }],        
         ['v8_target_arch=="loong64" or v8_target_arch=="loong64"', {
@@ -510,6 +508,7 @@
       'type': 'none',
       'toolsets': ['host', 'target'],
       'dependencies': [
+        'v8_libbase',
         'v8_shared_internal_headers',
       ],
       'direct_dependent_settings': {
@@ -554,6 +553,11 @@
               '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?v8_enable_i18n_support.*?sources \\+= ")',
             ],
           }],
+          ['v8_enable_snapshot_compression==1', {
+            'sources': [
+              '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?v8_enable_snapshot_compression.*?sources \\+= ")',
+            ],
+          }],
           ['v8_control_flow_integrity==0', {
             'sources': [
               '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?!v8_control_flow_integrity.*?sources \\+= ")',
@@ -632,11 +636,6 @@
               }],
             ],
           }],
-          ['v8_target_arch=="mips" or v8_target_arch=="mipsel"', {
-            'sources': [
-              '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?v8_current_cpu == \\"mips\\".*?sources \\+= ")',
-            ],
-          }],
           ['v8_target_arch=="mips64" or v8_target_arch=="mips64el"', {
             'sources': [
               '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_internal_headers\\".*?v8_current_cpu == \\"mips64\\".*?sources \\+= ")',
@@ -789,6 +788,11 @@
             '<(V8_ROOT)/src/heap/third-party/heap-api-stub.cc',
           ],
         }],
+        ['v8_enable_snapshot_compression==1', {
+          'sources': [
+            '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_enable_snapshot_compression.*?sources \\+= ")',
+          ],
+        }],
         ['v8_enable_maglev==1', {
           'sources': [
             '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_enable_maglev.*?sources \\+= ")',
@@ -877,11 +881,6 @@
             }],
           ],
         }],
-        ['v8_target_arch=="mips" or v8_target_arch=="mipsel"', {
-          'sources': [
-            '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_current_cpu == \\"mips\\".*?sources \\+= ")',
-          ],
-        }],
         ['v8_target_arch=="mips64" or v8_target_arch=="mips64el"', {
           'sources': [
             '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?v8_current_cpu == \\"mips64\\".*?sources \\+= ")',
@@ -929,9 +928,9 @@
             },
           },
           'conditions': [
-            ['v8_enable_system_instrumentation==1', {
+            ['v8_enable_etw_stack_walking==1', {
               'sources': [
-                '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?is_win.*?v8_enable_system_instrumentation.*?sources \\+= ")',
+                '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "\\"v8_base_without_compiler.*?is_win.*?v8_enable_etw_stack_walking.*?sources \\+= ")',
               ],
             }],
           ],
@@ -979,7 +978,7 @@
         }],
         # Platforms that don't have Compare-And-Swap (CAS) support need to link atomic library
         # to implement atomic memory access
-        ['v8_current_cpu in ["mips", "mipsel", "mips64", "mips64el", "ppc", "arm", "riscv64", "loong64"]', {
+        ['v8_current_cpu in ["mips64", "mips64el", "ppc", "arm", "riscv64", "loong64"]', {
           'link_settings': {
             'libraries': ['-latomic', ],
           },
@@ -1178,7 +1177,7 @@
               }
             },
             'conditions': [
-              ['v8_enable_system_instrumentation==1', {
+              ['v8_enable_etw_stack_walking==1', {
                 'msvs_settings': {
                   'VCLinkerTool': {
                     'AdditionalDependencies': [
@@ -1190,7 +1189,7 @@
             ],
           },
         }],
-        ['target_arch == "mips" or OS == "mips64"', {
+        ['OS == "mips64"', {
           # here just for 'BUILD.gn' sync
           # 'data': [
           #   '<(V8_ROOT)/tools/mips_toolchain/sysroot/usr/lib/',
@@ -1559,7 +1558,7 @@
       'toolsets': ['host', 'target'],
       'direct_dependent_settings': {
         'sources': [
-          '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_source_set.\\"v8_heap_base_headers.*?sources = ")',
+          '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_header_set.\\"v8_heap_base_headers.*?sources = ")',
         ],
       },
     },  # v8_heap_base_headers
@@ -1636,11 +1635,6 @@
                   '<(V8_ROOT)/src/heap/base/asm/s390/push_registers_asm.cc',
                 ],
               }],
-              ['_toolset == "host" and host_arch == "mips" or _toolset == "target" and target_arch=="mips" or _toolset == "host" and host_arch == "mipsel" or _toolset == "target" and target_arch=="mipsel"', {
-                'sources': [
-                  '<(V8_ROOT)/src/heap/base/asm/mips/push_registers_asm.cc',
-                ],
-              }],
               ['_toolset == "host" and host_arch == "mips64" or _toolset == "target" and target_arch=="mips64" or _toolset == "host" and host_arch == "mips64el" or _toolset == "target" and target_arch=="mips64el"', {
                 'sources': [
                   '<(V8_ROOT)/src/heap/base/asm/mips64/push_registers_asm.cc',
@@ -1662,12 +1656,12 @@
             'conditions': [
               ['_toolset == "host" and host_arch == "x64" or _toolset == "target" and target_arch=="x64"', {
                 'sources': [
-                  '<(V8_ROOT)/src/heap/base/asm/x64/push_registers_masm.S',
+                  '<(V8_ROOT)/src/heap/base/asm/x64/push_registers_masm.asm',
                 ],
               }],
               ['_toolset == "host" and host_arch == "ia32" or _toolset == "target" and target_arch=="ia32"', {
                 'sources': [
-                  '<(V8_ROOT)/src/heap/base/asm/ia32/push_registers_masm.S',
+                  '<(V8_ROOT)/src/heap/base/asm/ia32/push_registers_masm.asm',
                 ],
               }],
               ['_toolset == "host" and host_arch == "arm64" or _toolset == "target" and target_arch=="arm64"', {
@@ -1773,8 +1767,7 @@
             ]
           },
           'conditions': [
-            ['v8_target_arch=="mips" or v8_target_arch=="mipsel" \
-              or v8_target_arch=="mips64" or v8_target_arch=="mips64el"', {
+            ['v8_target_arch=="mips64" or v8_target_arch=="mips64el"', {
               'v8_dump_build_config_args': [
                 'mips_arch_variant=<(mips_arch_variant)',
                 'mips_use_msa=<(mips_use_msa)',