diff --git a/infra/config/generated/builders/ci/mac-updater-builder-arm64-dbg/properties.json b/infra/config/generated/builders/ci/mac-updater-builder-arm64-dbg/properties.json
index f74d210132205..f88ebf10d7395 100644
--- a/infra/config/generated/builders/ci/mac-updater-builder-arm64-dbg/properties.json
+++ b/infra/config/generated/builders/ci/mac-updater-builder-arm64-dbg/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-arm64-updater-tester-dbg",
+              "builder": "mac11-arm64-updater-tester-dbg",
               "project": "chromium"
             },
             "builder_spec": {
@@ -94,7 +94,7 @@
       "builder_ids_in_scope_for_testing": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-arm64-updater-tester-dbg",
+          "builder": "mac11-arm64-updater-tester-dbg",
           "project": "chromium"
         },
         {
diff --git a/infra/config/generated/builders/ci/mac-updater-builder-arm64-rel/properties.json b/infra/config/generated/builders/ci/mac-updater-builder-arm64-rel/properties.json
index b4f8d9f4baf35..913ccb0cca548 100644
--- a/infra/config/generated/builders/ci/mac-updater-builder-arm64-rel/properties.json
+++ b/infra/config/generated/builders/ci/mac-updater-builder-arm64-rel/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-arm64-updater-tester-rel",
+              "builder": "mac11-arm64-updater-tester-rel",
               "project": "chromium"
             },
             "builder_spec": {
@@ -66,7 +66,7 @@
       "builder_ids_in_scope_for_testing": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-arm64-updater-tester-rel",
+          "builder": "mac11-arm64-updater-tester-rel",
           "project": "chromium"
         }
       ]
diff --git a/infra/config/generated/builders/ci/mac-updater-builder-asan-dbg/properties.json b/infra/config/generated/builders/ci/mac-updater-builder-asan-dbg/properties.json
index 0523cb8bfcdf5..1146df49088d8 100644
--- a/infra/config/generated/builders/ci/mac-updater-builder-asan-dbg/properties.json
+++ b/infra/config/generated/builders/ci/mac-updater-builder-asan-dbg/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-updater-tester-asan-dbg",
+              "builder": "mac12-x64-updater-tester-asan-dbg",
               "project": "chromium"
             },
             "builder_spec": {
@@ -66,7 +66,7 @@
       "builder_ids_in_scope_for_testing": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-updater-tester-asan-dbg",
+          "builder": "mac12-x64-updater-tester-asan-dbg",
           "project": "chromium"
         }
       ]
diff --git a/infra/config/generated/builders/ci/mac-updater-builder-dbg/properties.json b/infra/config/generated/builders/ci/mac-updater-builder-dbg/properties.json
index d2dd8718d820e..a83d1f5e5c1f5 100644
--- a/infra/config/generated/builders/ci/mac-updater-builder-dbg/properties.json
+++ b/infra/config/generated/builders/ci/mac-updater-builder-dbg/properties.json
@@ -113,7 +113,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-updater-tester-dbg",
+              "builder": "mac11-x64-updater-tester-dbg",
               "project": "chromium"
             },
             "builder_spec": {
@@ -165,7 +165,7 @@
         },
         {
           "bucket": "ci",
-          "builder": "mac11.0-updater-tester-dbg",
+          "builder": "mac11-x64-updater-tester-dbg",
           "project": "chromium"
         }
       ],
diff --git a/infra/config/generated/builders/ci/mac-updater-builder-rel/properties.json b/infra/config/generated/builders/ci/mac-updater-builder-rel/properties.json
index 3378aa1305d70..b2e6aec403713 100644
--- a/infra/config/generated/builders/ci/mac-updater-builder-rel/properties.json
+++ b/infra/config/generated/builders/ci/mac-updater-builder-rel/properties.json
@@ -113,7 +113,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-updater-tester-rel",
+              "builder": "mac11-x64-updater-tester-rel",
               "project": "chromium"
             },
             "builder_spec": {
@@ -193,7 +193,7 @@
         },
         {
           "bucket": "ci",
-          "builder": "mac11.0-updater-tester-rel",
+          "builder": "mac11-x64-updater-tester-rel",
           "project": "chromium"
         },
         {
diff --git a/infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-dbg/properties.json b/infra/config/generated/builders/ci/mac11-arm64-updater-tester-dbg/properties.json
similarity index 94%
rename from infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-dbg/properties.json
rename to infra/config/generated/builders/ci/mac11-arm64-updater-tester-dbg/properties.json
index 0296c3a1709d4..1c267c773eb2a 100644
--- a/infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-dbg/properties.json
+++ b/infra/config/generated/builders/ci/mac11-arm64-updater-tester-dbg/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-arm64-updater-tester-dbg",
+              "builder": "mac11-arm64-updater-tester-dbg",
               "project": "chromium"
             },
             "builder_spec": {
@@ -59,7 +59,7 @@
       "builder_ids": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-arm64-updater-tester-dbg",
+          "builder": "mac11-arm64-updater-tester-dbg",
           "project": "chromium"
         }
       ]
diff --git a/infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-rel/properties.json b/infra/config/generated/builders/ci/mac11-arm64-updater-tester-rel/properties.json
similarity index 94%
rename from infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-rel/properties.json
rename to infra/config/generated/builders/ci/mac11-arm64-updater-tester-rel/properties.json
index 9cf4f86da15c9..5ebbdcf0199b7 100644
--- a/infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-rel/properties.json
+++ b/infra/config/generated/builders/ci/mac11-arm64-updater-tester-rel/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-arm64-updater-tester-rel",
+              "builder": "mac11-arm64-updater-tester-rel",
               "project": "chromium"
             },
             "builder_spec": {
@@ -59,7 +59,7 @@
       "builder_ids": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-arm64-updater-tester-rel",
+          "builder": "mac11-arm64-updater-tester-rel",
           "project": "chromium"
         }
       ]
diff --git a/infra/config/generated/builders/ci/mac11.0-updater-tester-dbg/properties.json b/infra/config/generated/builders/ci/mac11-x64-updater-tester-dbg/properties.json
similarity index 94%
rename from infra/config/generated/builders/ci/mac11.0-updater-tester-dbg/properties.json
rename to infra/config/generated/builders/ci/mac11-x64-updater-tester-dbg/properties.json
index d45bb562c8dce..875e6bafd9af3 100644
--- a/infra/config/generated/builders/ci/mac11.0-updater-tester-dbg/properties.json
+++ b/infra/config/generated/builders/ci/mac11-x64-updater-tester-dbg/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-updater-tester-dbg",
+              "builder": "mac11-x64-updater-tester-dbg",
               "project": "chromium"
             },
             "builder_spec": {
@@ -59,7 +59,7 @@
       "builder_ids": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-updater-tester-dbg",
+          "builder": "mac11-x64-updater-tester-dbg",
           "project": "chromium"
         }
       ]
diff --git a/infra/config/generated/builders/ci/mac11.0-updater-tester-rel/properties.json b/infra/config/generated/builders/ci/mac11-x64-updater-tester-rel/properties.json
similarity index 94%
rename from infra/config/generated/builders/ci/mac11.0-updater-tester-rel/properties.json
rename to infra/config/generated/builders/ci/mac11-x64-updater-tester-rel/properties.json
index c9824818cbd88..1c997f4cd114b 100644
--- a/infra/config/generated/builders/ci/mac11.0-updater-tester-rel/properties.json
+++ b/infra/config/generated/builders/ci/mac11-x64-updater-tester-rel/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-updater-tester-rel",
+              "builder": "mac11-x64-updater-tester-rel",
               "project": "chromium"
             },
             "builder_spec": {
@@ -59,7 +59,7 @@
       "builder_ids": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-updater-tester-rel",
+          "builder": "mac11-x64-updater-tester-rel",
           "project": "chromium"
         }
       ]
diff --git a/infra/config/generated/builders/ci/mac11.0-updater-tester-asan-dbg/properties.json b/infra/config/generated/builders/ci/mac12-x64-updater-tester-asan-dbg/properties.json
similarity index 94%
rename from infra/config/generated/builders/ci/mac11.0-updater-tester-asan-dbg/properties.json
rename to infra/config/generated/builders/ci/mac12-x64-updater-tester-asan-dbg/properties.json
index 1c5c63482e322..23aa51cefc812 100644
--- a/infra/config/generated/builders/ci/mac11.0-updater-tester-asan-dbg/properties.json
+++ b/infra/config/generated/builders/ci/mac12-x64-updater-tester-asan-dbg/properties.json
@@ -29,7 +29,7 @@
           {
             "builder_id": {
               "bucket": "ci",
-              "builder": "mac11.0-updater-tester-asan-dbg",
+              "builder": "mac12-x64-updater-tester-asan-dbg",
               "project": "chromium"
             },
             "builder_spec": {
@@ -59,7 +59,7 @@
       "builder_ids": [
         {
           "bucket": "ci",
-          "builder": "mac11.0-updater-tester-asan-dbg",
+          "builder": "mac12-x64-updater-tester-asan-dbg",
           "project": "chromium"
         }
       ]
diff --git a/infra/config/generated/luci/cr-buildbucket.cfg b/infra/config/generated/luci/cr-buildbucket.cfg
index 719c402a2e211..05d4a06a80105 100644
--- a/infra/config/generated/luci/cr-buildbucket.cfg
+++ b/infra/config/generated/luci/cr-buildbucket.cfg
@@ -44634,7 +44634,7 @@ buckets {
       }
     }
     builders {
-      name: "mac11.0-arm64-updater-tester-dbg"
+      name: "mac11-arm64-updater-tester-dbg"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "builderless:1"
       dimensions: "cores:8"
@@ -44660,7 +44660,7 @@ buckets {
         '    }'
         '  },'
         '  "$bootstrap/properties": {'
-        '    "properties_file": "infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-dbg/properties.json",'
+        '    "properties_file": "infra/config/generated/builders/ci/mac11-arm64-updater-tester-dbg/properties.json",'
         '    "top_level_project": {'
         '      "ref": "refs/heads/main",'
         '      "repo": {'
@@ -44722,7 +44722,7 @@ buckets {
       }
     }
     builders {
-      name: "mac11.0-arm64-updater-tester-rel"
+      name: "mac11-arm64-updater-tester-rel"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "builderless:1"
       dimensions: "cores:8"
@@ -44748,7 +44748,7 @@ buckets {
         '    }'
         '  },'
         '  "$bootstrap/properties": {'
-        '    "properties_file": "infra/config/generated/builders/ci/mac11.0-arm64-updater-tester-rel/properties.json",'
+        '    "properties_file": "infra/config/generated/builders/ci/mac11-arm64-updater-tester-rel/properties.json",'
         '    "top_level_project": {'
         '      "ref": "refs/heads/main",'
         '      "repo": {'
@@ -44810,7 +44810,7 @@ buckets {
       }
     }
     builders {
-      name: "mac11.0-updater-tester-asan-dbg"
+      name: "mac11-x64-updater-tester-dbg"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "builderless:1"
       dimensions: "cores:8"
@@ -44836,7 +44836,7 @@ buckets {
         '    }'
         '  },'
         '  "$bootstrap/properties": {'
-        '    "properties_file": "infra/config/generated/builders/ci/mac11.0-updater-tester-asan-dbg/properties.json",'
+        '    "properties_file": "infra/config/generated/builders/ci/mac11-x64-updater-tester-dbg/properties.json",'
         '    "top_level_project": {'
         '      "ref": "refs/heads/main",'
         '      "repo": {'
@@ -44898,7 +44898,7 @@ buckets {
       }
     }
     builders {
-      name: "mac11.0-updater-tester-dbg"
+      name: "mac11-x64-updater-tester-rel"
       swarming_host: "chromium-swarm.appspot.com"
       dimensions: "builderless:1"
       dimensions: "cores:8"
@@ -44924,95 +44924,7 @@ buckets {
         '    }'
         '  },'
         '  "$bootstrap/properties": {'
-        '    "properties_file": "infra/config/generated/builders/ci/mac11.0-updater-tester-dbg/properties.json",'
-        '    "top_level_project": {'
-        '      "ref": "refs/heads/main",'
-        '      "repo": {'
-        '        "host": "chromium.googlesource.com",'
-        '        "project": "chromium/src"'
-        '      }'
-        '    }'
-        '  },'
-        '  "builder_group": "chromium.updater",'
-        '  "led_builder_is_bootstrapped": true,'
-        '  "recipe": "chromium"'
-        '}'
-      execution_timeout_secs: 10800
-      build_numbers: YES
-      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
-      experiments {
-        key: "chromium_swarming.expose_merge_script_failures"
-        value: 100
-      }
-      experiments {
-        key: "luci.buildbucket.omit_python2"
-        value: 100
-      }
-      experiments {
-        key: "luci.recipes.use_python3"
-        value: 100
-      }
-      resultdb {
-        enable: true
-        bq_exports {
-          project: "chrome-luci-data"
-          dataset: "chromium"
-          table: "ci_test_results"
-          test_results {}
-        }
-        bq_exports {
-          project: "chrome-luci-data"
-          dataset: "chromium"
-          table: "gpu_ci_test_results"
-          test_results {
-            predicate {
-              test_id_regexp: "ninja://chrome/test:telemetry_gpu_integration_test[^/]*/.+"
-            }
-          }
-        }
-        bq_exports {
-          project: "chrome-luci-data"
-          dataset: "chromium"
-          table: "blink_web_tests_ci_test_results"
-          test_results {
-            predicate {
-              test_id_regexp: "(ninja://[^/]*blink_web_tests/.+)|(ninja://[^/]*blink_wpt_tests/.+)"
-            }
-          }
-        }
-        history_options {
-          use_invocation_timestamp: true
-        }
-      }
-    }
-    builders {
-      name: "mac11.0-updater-tester-rel"
-      swarming_host: "chromium-swarm.appspot.com"
-      dimensions: "builderless:1"
-      dimensions: "cores:8"
-      dimensions: "cpu:x86-64"
-      dimensions: "free_space:standard"
-      dimensions: "os:Ubuntu-18.04"
-      dimensions: "pool:luci.chromium.ci"
-      dimensions: "ssd:0"
-      exe {
-        cipd_package: "infra/chromium/bootstrapper/${platform}"
-        cipd_version: "latest"
-        cmd: "bootstrapper"
-      }
-      properties:
-        '{'
-        '  "$bootstrap/exe": {'
-        '    "exe": {'
-        '      "cipd_package": "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build",'
-        '      "cipd_version": "refs/heads/main",'
-        '      "cmd": ['
-        '        "luciexe"'
-        '      ]'
-        '    }'
-        '  },'
-        '  "$bootstrap/properties": {'
-        '    "properties_file": "infra/config/generated/builders/ci/mac11.0-updater-tester-rel/properties.json",'
+        '    "properties_file": "infra/config/generated/builders/ci/mac11-x64-updater-tester-rel/properties.json",'
         '    "top_level_project": {'
         '      "ref": "refs/heads/main",'
         '      "repo": {'
@@ -45251,6 +45163,94 @@ buckets {
         }
       }
     }
+    builders {
+      name: "mac12-x64-updater-tester-asan-dbg"
+      swarming_host: "chromium-swarm.appspot.com"
+      dimensions: "builderless:1"
+      dimensions: "cores:8"
+      dimensions: "cpu:x86-64"
+      dimensions: "free_space:standard"
+      dimensions: "os:Ubuntu-18.04"
+      dimensions: "pool:luci.chromium.ci"
+      dimensions: "ssd:0"
+      exe {
+        cipd_package: "infra/chromium/bootstrapper/${platform}"
+        cipd_version: "latest"
+        cmd: "bootstrapper"
+      }
+      properties:
+        '{'
+        '  "$bootstrap/exe": {'
+        '    "exe": {'
+        '      "cipd_package": "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build",'
+        '      "cipd_version": "refs/heads/main",'
+        '      "cmd": ['
+        '        "luciexe"'
+        '      ]'
+        '    }'
+        '  },'
+        '  "$bootstrap/properties": {'
+        '    "properties_file": "infra/config/generated/builders/ci/mac12-x64-updater-tester-asan-dbg/properties.json",'
+        '    "top_level_project": {'
+        '      "ref": "refs/heads/main",'
+        '      "repo": {'
+        '        "host": "chromium.googlesource.com",'
+        '        "project": "chromium/src"'
+        '      }'
+        '    }'
+        '  },'
+        '  "builder_group": "chromium.updater",'
+        '  "led_builder_is_bootstrapped": true,'
+        '  "recipe": "chromium"'
+        '}'
+      execution_timeout_secs: 10800
+      build_numbers: YES
+      service_account: "chromium-ci-builder@chops-service-accounts.iam.gserviceaccount.com"
+      experiments {
+        key: "chromium_swarming.expose_merge_script_failures"
+        value: 100
+      }
+      experiments {
+        key: "luci.buildbucket.omit_python2"
+        value: 100
+      }
+      experiments {
+        key: "luci.recipes.use_python3"
+        value: 100
+      }
+      resultdb {
+        enable: true
+        bq_exports {
+          project: "chrome-luci-data"
+          dataset: "chromium"
+          table: "ci_test_results"
+          test_results {}
+        }
+        bq_exports {
+          project: "chrome-luci-data"
+          dataset: "chromium"
+          table: "gpu_ci_test_results"
+          test_results {
+            predicate {
+              test_id_regexp: "ninja://chrome/test:telemetry_gpu_integration_test[^/]*/.+"
+            }
+          }
+        }
+        bq_exports {
+          project: "chrome-luci-data"
+          dataset: "chromium"
+          table: "blink_web_tests_ci_test_results"
+          test_results {
+            predicate {
+              test_id_regexp: "(ninja://[^/]*blink_web_tests/.+)|(ninja://[^/]*blink_wpt_tests/.+)"
+            }
+          }
+        }
+        history_options {
+          use_invocation_timestamp: true
+        }
+      }
+    }
     builders {
       name: "mac13-arm64-updater-tester-dbg"
       swarming_host: "chromium-swarm.appspot.com"
diff --git a/infra/config/generated/luci/luci-milo.cfg b/infra/config/generated/luci/luci-milo.cfg
index 690ae1dd73c81..4b5cba5efedee 100644
--- a/infra/config/generated/luci/luci-milo.cfg
+++ b/infra/config/generated/luci/luci-milo.cfg
@@ -14249,19 +14249,19 @@ consoles {
     short_name: "10.15"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/mac11.0-updater-tester-dbg"
+    name: "buildbucket/luci.chromium.ci/mac11-x64-updater-tester-dbg"
     category: "debug|mac"
-    short_name: "11.0"
+    short_name: "11"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/mac11.0-arm64-updater-tester-dbg"
+    name: "buildbucket/luci.chromium.ci/mac11-arm64-updater-tester-dbg"
     category: "debug|mac"
-    short_name: "11.0 arm64"
+    short_name: "11 arm64"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/mac11.0-updater-tester-asan-dbg"
+    name: "buildbucket/luci.chromium.ci/mac12-x64-updater-tester-asan-dbg"
     category: "debug|mac"
-    short_name: "11.0 asan"
+    short_name: "12 asan"
   }
   builders {
     name: "buildbucket/luci.chromium.ci/mac13-arm64-updater-tester-dbg"
@@ -14354,14 +14354,14 @@ consoles {
     short_name: "10.15"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/mac11.0-updater-tester-rel"
+    name: "buildbucket/luci.chromium.ci/mac11-x64-updater-tester-rel"
     category: "release|mac"
-    short_name: "11.0"
+    short_name: "11"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/mac11.0-arm64-updater-tester-rel"
+    name: "buildbucket/luci.chromium.ci/mac11-arm64-updater-tester-rel"
     category: "release|mac"
-    short_name: "11.0 arm64"
+    short_name: "11 arm64"
   }
   builders {
     name: "buildbucket/luci.chromium.ci/mac13-x64-updater-tester-rel"
diff --git a/infra/config/generated/luci/luci-scheduler.cfg b/infra/config/generated/luci/luci-scheduler.cfg
index c21107030b046..b7ef01080fded 100644
--- a/infra/config/generated/luci/luci-scheduler.cfg
+++ b/infra/config/generated/luci/luci-scheduler.cfg
@@ -5471,48 +5471,39 @@ job {
   }
 }
 job {
-  id: "mac11.0-arm64-updater-tester-dbg"
+  id: "mac11-arm64-updater-tester-dbg"
   realm: "ci"
   buildbucket {
     server: "cr-buildbucket.appspot.com"
     bucket: "ci"
-    builder: "mac11.0-arm64-updater-tester-dbg"
+    builder: "mac11-arm64-updater-tester-dbg"
   }
 }
 job {
-  id: "mac11.0-arm64-updater-tester-rel"
+  id: "mac11-arm64-updater-tester-rel"
   realm: "ci"
   buildbucket {
     server: "cr-buildbucket.appspot.com"
     bucket: "ci"
-    builder: "mac11.0-arm64-updater-tester-rel"
+    builder: "mac11-arm64-updater-tester-rel"
   }
 }
 job {
-  id: "mac11.0-updater-tester-asan-dbg"
+  id: "mac11-x64-updater-tester-dbg"
   realm: "ci"
   buildbucket {
     server: "cr-buildbucket.appspot.com"
     bucket: "ci"
-    builder: "mac11.0-updater-tester-asan-dbg"
+    builder: "mac11-x64-updater-tester-dbg"
   }
 }
 job {
-  id: "mac11.0-updater-tester-dbg"
+  id: "mac11-x64-updater-tester-rel"
   realm: "ci"
   buildbucket {
     server: "cr-buildbucket.appspot.com"
     bucket: "ci"
-    builder: "mac11.0-updater-tester-dbg"
-  }
-}
-job {
-  id: "mac11.0-updater-tester-rel"
-  realm: "ci"
-  buildbucket {
-    server: "cr-buildbucket.appspot.com"
-    bucket: "ci"
-    builder: "mac11.0-updater-tester-rel"
+    builder: "mac11-x64-updater-tester-rel"
   }
 }
 job {
@@ -5534,6 +5525,15 @@ job {
     builder: "mac12-wpt-content-shell-fyi-rel"
   }
 }
+job {
+  id: "mac12-x64-updater-tester-asan-dbg"
+  realm: "ci"
+  buildbucket {
+    server: "cr-buildbucket.appspot.com"
+    bucket: "ci"
+    builder: "mac12-x64-updater-tester-asan-dbg"
+  }
+}
 job {
   id: "mac13-arm64-updater-tester-dbg"
   realm: "ci"
diff --git a/infra/config/generated/luci/realms.cfg b/infra/config/generated/luci/realms.cfg
index 833d393e17472..88c7c0896af33 100644
--- a/infra/config/generated/luci/realms.cfg
+++ b/infra/config/generated/luci/realms.cfg
@@ -168,12 +168,12 @@ realms {
         values: "mac10.15-updater-tester-dbg"
         values: "mac10.15-updater-tester-rel"
         values: "mac11-arm64-rel-tests"
-        values: "mac11.0-arm64-updater-tester-dbg"
-        values: "mac11.0-arm64-updater-tester-rel"
-        values: "mac11.0-updater-tester-asan-dbg"
-        values: "mac11.0-updater-tester-dbg"
-        values: "mac11.0-updater-tester-rel"
+        values: "mac11-arm64-updater-tester-dbg"
+        values: "mac11-arm64-updater-tester-rel"
+        values: "mac11-x64-updater-tester-dbg"
+        values: "mac11-x64-updater-tester-rel"
         values: "mac12-arm64-rel-tests"
+        values: "mac12-x64-updater-tester-asan-dbg"
         values: "mac13-arm64-updater-tester-dbg"
         values: "mac13-x64-updater-tester-rel"
         values: "win10-32-on-64-updater-tester-dbg"
diff --git a/infra/config/subprojects/chromium/ci/chromium.updater.star b/infra/config/subprojects/chromium/ci/chromium.updater.star
index bb06be943d718..e81df04cb787a 100644
--- a/infra/config/subprojects/chromium/ci/chromium.updater.star
+++ b/infra/config/subprojects/chromium/ci/chromium.updater.star
@@ -311,55 +311,7 @@ ci.thin_tester(
 )
 
 ci.thin_tester(
-    name = "mac11.0-updater-tester-dbg",
-    builder_spec = builder_config.builder_spec(
-        execution_mode = builder_config.execution_mode.TEST,
-        gclient_config = builder_config.gclient_config(
-            config = "chromium",
-        ),
-        chromium_config = builder_config.chromium_config(
-            config = "chromium",
-            apply_configs = [
-                "mb",
-            ],
-            build_config = builder_config.build_config.DEBUG,
-            target_bits = 64,
-            target_platform = builder_config.target_platform.MAC,
-        ),
-    ),
-    triggered_by = ["mac-updater-builder-dbg"],
-    console_view_entry = consoles.console_view_entry(
-        category = "debug|mac",
-        short_name = "11.0",
-    ),
-)
-
-ci.thin_tester(
-    name = "mac11.0-updater-tester-rel",
-    builder_spec = builder_config.builder_spec(
-        execution_mode = builder_config.execution_mode.TEST,
-        gclient_config = builder_config.gclient_config(
-            config = "chromium",
-        ),
-        chromium_config = builder_config.chromium_config(
-            config = "chromium",
-            apply_configs = [
-                "mb",
-            ],
-            build_config = builder_config.build_config.RELEASE,
-            target_bits = 64,
-            target_platform = builder_config.target_platform.MAC,
-        ),
-    ),
-    triggered_by = ["mac-updater-builder-rel"],
-    console_view_entry = consoles.console_view_entry(
-        category = "release|mac",
-        short_name = "11.0",
-    ),
-)
-
-ci.thin_tester(
-    name = "mac11.0-arm64-updater-tester-dbg",
+    name = "mac11-arm64-updater-tester-dbg",
     builder_spec = builder_config.builder_spec(
         execution_mode = builder_config.execution_mode.TEST,
         gclient_config = builder_config.gclient_config(
@@ -378,12 +330,12 @@ ci.thin_tester(
     triggered_by = ["mac-updater-builder-arm64-dbg"],
     console_view_entry = consoles.console_view_entry(
         category = "debug|mac",
-        short_name = "11.0 arm64",
+        short_name = "11 arm64",
     ),
 )
 
 ci.thin_tester(
-    name = "mac11.0-arm64-updater-tester-rel",
+    name = "mac11-arm64-updater-tester-rel",
     builder_spec = builder_config.builder_spec(
         execution_mode = builder_config.execution_mode.TEST,
         gclient_config = builder_config.gclient_config(
@@ -402,13 +354,60 @@ ci.thin_tester(
     triggered_by = ["mac-updater-builder-arm64-rel"],
     console_view_entry = consoles.console_view_entry(
         category = "release|mac",
-        short_name = "11.0 arm64",
+        short_name = "11 arm64",
     ),
 )
 
-# TODO(crbug.com/1381588): move to macOS 12 once crbug.com/1394839 is resolved.
 ci.thin_tester(
-    name = "mac11.0-updater-tester-asan-dbg",
+    name = "mac11-x64-updater-tester-dbg",
+    builder_spec = builder_config.builder_spec(
+        execution_mode = builder_config.execution_mode.TEST,
+        gclient_config = builder_config.gclient_config(
+            config = "chromium",
+        ),
+        chromium_config = builder_config.chromium_config(
+            config = "chromium",
+            apply_configs = [
+                "mb",
+            ],
+            build_config = builder_config.build_config.DEBUG,
+            target_bits = 64,
+            target_platform = builder_config.target_platform.MAC,
+        ),
+    ),
+    triggered_by = ["mac-updater-builder-dbg"],
+    console_view_entry = consoles.console_view_entry(
+        category = "debug|mac",
+        short_name = "11",
+    ),
+)
+
+ci.thin_tester(
+    name = "mac11-x64-updater-tester-rel",
+    builder_spec = builder_config.builder_spec(
+        execution_mode = builder_config.execution_mode.TEST,
+        gclient_config = builder_config.gclient_config(
+            config = "chromium",
+        ),
+        chromium_config = builder_config.chromium_config(
+            config = "chromium",
+            apply_configs = [
+                "mb",
+            ],
+            build_config = builder_config.build_config.RELEASE,
+            target_bits = 64,
+            target_platform = builder_config.target_platform.MAC,
+        ),
+    ),
+    triggered_by = ["mac-updater-builder-rel"],
+    console_view_entry = consoles.console_view_entry(
+        category = "release|mac",
+        short_name = "11",
+    ),
+)
+
+ci.thin_tester(
+    name = "mac12-x64-updater-tester-asan-dbg",
     builder_spec = builder_config.builder_spec(
         execution_mode = builder_config.execution_mode.TEST,
         gclient_config = builder_config.gclient_config(
@@ -427,7 +426,7 @@ ci.thin_tester(
     triggered_by = ["mac-updater-builder-asan-dbg"],
     console_view_entry = consoles.console_view_entry(
         category = "debug|mac",
-        short_name = "11.0 asan",
+        short_name = "12 asan",
     ),
 )
 
diff --git a/testing/buildbot/chromium.updater.json b/testing/buildbot/chromium.updater.json
index d9afba94066de..b3d50737cc69e 100644
--- a/testing/buildbot/chromium.updater.json
+++ b/testing/buildbot/chromium.updater.json
@@ -272,7 +272,7 @@
       }
     ]
   },
-  "mac11.0-arm64-updater-tester-dbg": {
+  "mac11-arm64-updater-tester-dbg": {
     "gtest_tests": [
       {
         "merge": {
@@ -313,7 +313,7 @@
       }
     ]
   },
-  "mac11.0-arm64-updater-tester-rel": {
+  "mac11-arm64-updater-tester-rel": {
     "gtest_tests": [
       {
         "merge": {
@@ -354,7 +354,7 @@
       }
     ]
   },
-  "mac11.0-updater-tester-asan-dbg": {
+  "mac11-x64-updater-tester-dbg": {
     "gtest_tests": [
       {
         "merge": {
@@ -395,7 +395,7 @@
       }
     ]
   },
-  "mac11.0-updater-tester-dbg": {
+  "mac11-x64-updater-tester-rel": {
     "gtest_tests": [
       {
         "merge": {
@@ -436,7 +436,7 @@
       }
     ]
   },
-  "mac11.0-updater-tester-rel": {
+  "mac12-x64-updater-tester-asan-dbg": {
     "gtest_tests": [
       {
         "merge": {
@@ -448,32 +448,13 @@
           "dimension_sets": [
             {
               "cpu": "x86-64",
-              "os": "Mac-11"
+              "os": "Mac-12"
             }
           ],
           "service_account": "chromium-tester@chops-service-accounts.iam.gserviceaccount.com"
         },
         "test": "updater_tests",
         "test_id_prefix": "ninja://chrome/updater:updater_tests/"
-      },
-      {
-        "merge": {
-          "args": [],
-          "script": "//testing/merge_scripts/standard_gtest_merge.py"
-        },
-        "swarming": {
-          "can_use_on_swarming_builders": true,
-          "dimension_sets": [
-            {
-              "cpu": "x86-64",
-              "os": "Mac-11",
-              "pool": "chromium.updater.mac"
-            }
-          ],
-          "service_account": "chromium-tester@chops-service-accounts.iam.gserviceaccount.com"
-        },
-        "test": "updater_tests_system",
-        "test_id_prefix": "ninja://chrome/updater:updater_tests_system/"
       }
     ]
   },
diff --git a/testing/buildbot/waterfalls.pyl b/testing/buildbot/waterfalls.pyl
index 3d83462e549a2..3be1c75adee59 100644
--- a/testing/buildbot/waterfalls.pyl
+++ b/testing/buildbot/waterfalls.pyl
@@ -5750,7 +5750,7 @@
           ]
         },
       },
-      'mac11.0-arm64-updater-tester-dbg': {
+      'mac11-arm64-updater-tester-dbg': {
         'swarming': {
           'dimension_sets': [
             {
@@ -5763,7 +5763,7 @@
           'gtest_tests': 'updater_gtests_mac',
         },
       },
-      'mac11.0-arm64-updater-tester-rel': {
+      'mac11-arm64-updater-tester-rel': {
         'swarming': {
           'dimension_sets': [
             {
@@ -5776,9 +5776,7 @@
           'gtest_tests': 'updater_gtests_mac',
         },
       },
-      # TODO(crbug.com/1381588): move to macOS 12 once crbug.com/1394839 is
-      # resolved.
-      'mac11.0-updater-tester-asan-dbg': {
+      'mac11-x64-updater-tester-dbg': {
         'test_suites': {
           'gtest_tests': 'updater_gtests_mac',
         },
@@ -5791,7 +5789,7 @@
           ]
         },
       },
-      'mac11.0-updater-tester-dbg': {
+      'mac11-x64-updater-tester-rel': {
         'test_suites': {
           'gtest_tests': 'updater_gtests_mac',
         },
@@ -5804,15 +5802,19 @@
           ]
         },
       },
-      'mac11.0-updater-tester-rel': {
+
+      # TODO(crbug.com/1381588, crbug.com/1405483): replace
+      # `updater_gtests_mac_user` with `updater_gtests_mac` once
+      # crbug.com/1394839 is resolved.
+      'mac12-x64-updater-tester-asan-dbg': {
         'test_suites': {
-          'gtest_tests': 'updater_gtests_mac',
+          'gtest_tests': 'updater_gtests_mac_user',
         },
         'swarming': {
           'dimension_sets': [
             {
               'cpu': 'x86-64',
-              'os': 'Mac-11',
+              'os': 'Mac-12',
             }
           ]
         },