From c371556314a89443046d2bff30f19e94312b7983 Mon Sep 17 00:00:00 2001
From: Dibyajyoti Pal <dibyapal@google.com>
Date: Fri, 27 Mar 2026 11:23:30 -0700
Subject: [PATCH 1/3] Migration features

---
 manifests/webapp/migrate_from.json | 42 ++++++++++++++++++++++++++++++
 manifests/webapp/migrate_to.json   | 42 ++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 manifests/webapp/migrate_from.json
 create mode 100644 manifests/webapp/migrate_to.json

diff --git a/manifests/webapp/migrate_from.json b/manifests/webapp/migrate_from.json
new file mode 100644
index 00000000000000..186a4f1e2154de
--- /dev/null
+++ b/manifests/webapp/migrate_from.json
@@ -0,0 +1,42 @@
+{
+  "manifests": {
+    "webapp": {
+      "migrate_from": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/manifest-incubations/#migrate_from-member",
+          "tags": [
+            "web-features:app-migration"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "138"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/manifests/webapp/migrate_to.json b/manifests/webapp/migrate_to.json
new file mode 100644
index 00000000000000..595f8479fcda53
--- /dev/null
+++ b/manifests/webapp/migrate_to.json
@@ -0,0 +1,42 @@
+{
+  "manifests": {
+    "webapp": {
+      "migrate_to": {
+        "__compat": {
+          "spec_url": "https://wicg.github.io/manifest-incubations/#migrate_to-member",
+          "tags": [
+            "web-features:app-migration"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": "138"
+            },
+            "chrome_android": {
+              "version_added": false
+            },
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": false
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      }
+    }
+  }
+}

From 4afe95f6db86647761ffaf71af590e8afd96ed09 Mon Sep 17 00:00:00 2001
From: Dibyajyoti Pal <dibyapal@google.com>
Date: Fri, 27 Mar 2026 11:28:40 -0700
Subject: [PATCH 2/3] Fix version number

---
 manifests/webapp/migrate_from.json | 2 +-
 manifests/webapp/migrate_to.json   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/manifests/webapp/migrate_from.json b/manifests/webapp/migrate_from.json
index 186a4f1e2154de..ff99845b627f8e 100644
--- a/manifests/webapp/migrate_from.json
+++ b/manifests/webapp/migrate_from.json
@@ -9,7 +9,7 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "138"
+              "version_added": "149"
             },
             "chrome_android": {
               "version_added": false
diff --git a/manifests/webapp/migrate_to.json b/manifests/webapp/migrate_to.json
index 595f8479fcda53..4c5f61b052094b 100644
--- a/manifests/webapp/migrate_to.json
+++ b/manifests/webapp/migrate_to.json
@@ -9,7 +9,7 @@
           ],
           "support": {
             "chrome": {
-              "version_added": "138"
+              "version_added": "149"
             },
             "chrome_android": {
               "version_added": false

From 15e4b9d0623aeb94775b35124ba5a0c370792785 Mon Sep 17 00:00:00 2001
From: Dibyajyoti Pal <dibyapal@google.com>
Date: Fri, 27 Mar 2026 11:54:33 -0700
Subject: [PATCH 3/3] Fix

---
 manifests/webapp/migrate_from.json | 3 ---
 manifests/webapp/migrate_to.json   | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/manifests/webapp/migrate_from.json b/manifests/webapp/migrate_from.json
index ff99845b627f8e..c651562d9a8e82 100644
--- a/manifests/webapp/migrate_from.json
+++ b/manifests/webapp/migrate_from.json
@@ -4,9 +4,6 @@
       "migrate_from": {
         "__compat": {
           "spec_url": "https://wicg.github.io/manifest-incubations/#migrate_from-member",
-          "tags": [
-            "web-features:app-migration"
-          ],
           "support": {
             "chrome": {
               "version_added": "149"
diff --git a/manifests/webapp/migrate_to.json b/manifests/webapp/migrate_to.json
index 4c5f61b052094b..9c0413ef4b600d 100644
--- a/manifests/webapp/migrate_to.json
+++ b/manifests/webapp/migrate_to.json
@@ -4,9 +4,6 @@
       "migrate_to": {
         "__compat": {
           "spec_url": "https://wicg.github.io/manifest-incubations/#migrate_to-member",
-          "tags": [
-            "web-features:app-migration"
-          ],
           "support": {
             "chrome": {
               "version_added": "149"