diff --git a/api/NavigationActivation.json b/api/NavigationActivation.json
index 9dfc4bf3ab7268..32a47ccd7d4c9b 100644
--- a/api/NavigationActivation.json
+++ b/api/NavigationActivation.json
@@ -2,6 +2,7 @@
   "api": {
     "NavigationActivation": {
       "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#navigationactivation",
         "tags": [
           "web-features:navigation-activation"
@@ -37,6 +38,7 @@
       },
       "entry": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation/entry",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigationactivation-entry",
           "tags": [
             "web-features:navigation-activation"
@@ -73,6 +75,7 @@
       },
       "from": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation/from",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigationactivation-from",
           "tags": [
             "web-features:navigation-activation"
@@ -109,6 +112,7 @@
       },
       "navigationType": {
         "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/NavigationActivation/navigationType",
           "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-navigationactivation-navigationtype",
           "tags": [
             "web-features:navigation-activation"
diff --git a/api/PageRevealEvent.json b/api/PageRevealEvent.json
index 2222f7d4554f45..2d0da432ce91db 100644
--- a/api/PageRevealEvent.json
+++ b/api/PageRevealEvent.json
@@ -2,10 +2,18 @@
   "api": {
     "PageRevealEvent": {
       "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageRevealEvent",
         "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pagerevealevent-interface",
         "support": {
           "chrome": {
-            "version_added": "123"
+            "version_added": "123",
+            "flags": [
+              {
+                "type": "preference",
+                "name": "viewTransition API for navigations",
+                "value_to_set": "Enabled"
+              }
+            ]
           },
           "chrome_android": "mirror",
           "edge": "mirror",
@@ -31,6 +39,89 @@
           "standard_track": true,
           "deprecated": false
         }
+      },
+      "PageRevealEvent": {
+        "__compat": {
+          "description": "<code>PageRevealEvent()</code> constructor",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageRevealEvent/PageRevealEvent",
+          "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pagerevealevent-interface",
+          "support": {
+            "chrome": {
+              "version_added": "123",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "viewTransition API for navigations",
+                  "value_to_set": "Enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "viewTransition": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageRevealEvent/viewTransition",
+          "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-pagerevealevent-viewtransition",
+          "support": {
+            "chrome": {
+              "version_added": "123",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "viewTransition API for navigations",
+                  "value_to_set": "Enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
       }
     }
   }
diff --git a/api/PageSwapEvent.json b/api/PageSwapEvent.json
new file mode 100644
index 00000000000000..5255e3818ab2c3
--- /dev/null
+++ b/api/PageSwapEvent.json
@@ -0,0 +1,169 @@
+{
+  "api": {
+    "PageSwapEvent": {
+      "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageSwapEvent",
+        "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pageswapevent-interface",
+        "support": {
+          "chrome": {
+            "version_added": "124",
+            "flags": [
+              {
+                "type": "preference",
+                "name": "viewTransition API for navigations",
+                "value_to_set": "Enabled"
+              }
+            ]
+          },
+          "chrome_android": "mirror",
+          "edge": "mirror",
+          "firefox": {
+            "version_added": false
+          },
+          "firefox_android": "mirror",
+          "ie": {
+            "version_added": false
+          },
+          "oculus": "mirror",
+          "opera": "mirror",
+          "opera_android": "mirror",
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": "mirror",
+          "samsunginternet_android": "mirror",
+          "webview_android": "mirror"
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      },
+      "PageSwapEvent": {
+        "__compat": {
+          "description": "<code>PageSwapEvent()</code> constructor",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageSwapEvent/PageSwapEvent",
+          "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#the-pageswapevent-interface",
+          "support": {
+            "chrome": {
+              "version_added": "124",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "viewTransition API for navigations",
+                  "value_to_set": "Enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "activation": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageSwapEvent/activation",
+          "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-pageswapevent-activation",
+          "support": {
+            "chrome": {
+              "version_added": "124",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "viewTransition API for navigations",
+                  "value_to_set": "Enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
+      "viewTransition": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PageSwapEvent/viewTransition",
+          "spec_url": "https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-pageswapevent-viewtransition",
+          "support": {
+            "chrome": {
+              "version_added": "124",
+              "flags": [
+                {
+                  "type": "preference",
+                  "name": "viewTransition API for navigations",
+                  "value_to_set": "Enabled"
+                }
+              ]
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/api/Window.json b/api/Window.json
index d8035bbba4904c..7b94bce98fe1f7 100644
--- a/api/Window.json
+++ b/api/Window.json
@@ -3713,6 +3713,41 @@
           }
         }
       },
+      "pagereveal_event": {
+        "__compat": {
+          "description": "<code>pagereveal</code> event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/pagereveal_event",
+          "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-pagereveal",
+          "support": {
+            "chrome": {
+              "version_added": "123"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "pageshow_event": {
         "__compat": {
           "description": "<code>pageshow</code> event",
@@ -3752,6 +3787,41 @@
           }
         }
       },
+      "pageswap_event": {
+        "__compat": {
+          "description": "<code>pageswap</code> event",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/pageswap_event",
+          "spec_url": "https://html.spec.whatwg.org/multipage/indices.html#event-pageswap",
+          "support": {
+            "chrome": {
+              "version_added": "124"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "parent": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/Window/parent",
diff --git a/css/at-rules/view-transition.json b/css/at-rules/view-transition.json
new file mode 100644
index 00000000000000..075792f9fdefc5
--- /dev/null
+++ b/css/at-rules/view-transition.json
@@ -0,0 +1,41 @@
+{
+  "css": {
+    "at-rules": {
+      "view-transition": {
+        "__compat": {
+          "description": "<code>@view-transition</code>",
+          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@view-transition",
+          "spec_url": "https://drafts.csswg.org/css-view-transitions-2/#view-transition-rule",
+          "support": {
+            "chrome": {
+              "version_added": "124"
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/html/elements/link.json b/html/elements/link.json
index 83319ccd52a9c7..0c591061d5a24a 100644
--- a/html/elements/link.json
+++ b/html/elements/link.json
@@ -783,6 +783,41 @@
               }
             }
           },
+          "expect": {
+            "__compat": {
+              "description": "rel=expect",
+              "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Attributes/rel/expect",
+              "spec_url": "https://html.spec.whatwg.org/multipage/links.html#link-type-expect",
+              "support": {
+                "chrome": {
+                  "version_added": "124"
+                },
+                "chrome_android": "mirror",
+                "edge": "mirror",
+                "firefox": {
+                  "version_added": false
+                },
+                "firefox_android": "mirror",
+                "ie": {
+                  "version_added": false
+                },
+                "oculus": "mirror",
+                "opera": "mirror",
+                "opera_android": "mirror",
+                "safari": {
+                  "version_added": false
+                },
+                "safari_ios": "mirror",
+                "samsunginternet_android": "mirror",
+                "webview_android": "mirror"
+              },
+              "status": {
+                "experimental": true,
+                "standard_track": true,
+                "deprecated": false
+              }
+            }
+          },
           "icon": {
             "__compat": {
               "description": "rel=icon",