diff --git a/.github/workflows/static-files.yml b/.github/workflows/static-files.yml
index a9ce1419bb..23dd6b0f32 100644
--- a/.github/workflows/static-files.yml
+++ b/.github/workflows/static-files.yml
@@ -12,7 +12,7 @@ jobs:
   static:
     runs-on: ubuntu-latest
     permissions:
-      contents: read
+      contents: write
     steps:
       - uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3
         id: app-token
@@ -24,7 +24,6 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           token: ${{ steps.app-token.outputs.token }}
-          persist-credentials: false
       - uses: ruby/setup-ruby@6aaa311d81eba98ae12eaffbcb63296ace0efcde # v1
         with:
           ruby-version: '3.4'
diff --git a/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/default.png b/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/default.png
index 3bbf2eac2d..0597aaf9eb 100644
Binary files a/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/default.png and b/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/default.png differ
diff --git a/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/focused.png b/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/focused.png
index 66315e07b8..4efa801b95 100644
Binary files a/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/focused.png and b/.playwright/screenshots/snapshots.test.ts-snapshots/primer/alpha/segmented_control/icons_and_text_small/focused.png differ
diff --git a/.playwright/screenshots/snapshots.test.ts-snapshots/primer/open_project/filterable_tree_view/default/light_high_contrast.png b/.playwright/screenshots/snapshots.test.ts-snapshots/primer/open_project/filterable_tree_view/default/light_high_contrast.png
index d90baa335f..d92001408f 100644
Binary files a/.playwright/screenshots/snapshots.test.ts-snapshots/primer/open_project/filterable_tree_view/default/light_high_contrast.png and b/.playwright/screenshots/snapshots.test.ts-snapshots/primer/open_project/filterable_tree_view/default/light_high_contrast.png differ
diff --git a/static/arguments.json b/static/arguments.json
index 6172e0f8d9..90935aa12d 100644
--- a/static/arguments.json
+++ b/static/arguments.json
@@ -6173,6 +6173,12 @@
         "default": "`nil`",
         "description": "URL of the server endpoint that returns a filtered `<tree-view>` HTML fragment. When set, activates async (server-side) filtering mode. See \"Async loading strategy\" above."
       },
+      {
+        "name": "show_search_highlighting",
+        "type": "Boolean",
+        "default": "`true`",
+        "description": "Only relevant in async mode (`src:` must be set). When `true` (default), the client highlights matching text using the CSS Custom Highlight API or `<mark>` elements. When `false`, the client skips highlighting entirely; the server is responsible for including highlight markup (e.g. `<mark>` tags) in the returned HTML fragment."
+      },
       {
         "name": "tree_view_arguments",
         "type": "Hash",
@@ -6498,7 +6504,7 @@
       {
         "name": "collapsed_search",
         "type": "Boolean",
-        "default": "`false`",
+        "default": "`true`",
         "description": "When true, the search bar starts collapsed as an icon button on all screen sizes. Clicking expands it."
       },
       {
diff --git a/static/info_arch.json b/static/info_arch.json
index 4dce754895..763c1b25d3 100644
--- a/static/info_arch.json
+++ b/static/info_arch.json
@@ -10869,6 +10869,19 @@
             "color-contrast"
           ]
         }
+      },
+      {
+        "preview_path": "primer/alpha/tree_view/doubled_path",
+        "name": "doubled_path",
+        "snapshot": "false",
+        "skip_rules": {
+          "wont_fix": [
+            "region"
+          ],
+          "will_fix": [
+            "color-contrast"
+          ]
+        }
       }
     ],
     "subcomponents": [
@@ -20368,6 +20381,12 @@
         "default": "`nil`",
         "description": "URL of the server endpoint that returns a filtered `<tree-view>` HTML fragment. When set, activates async (server-side) filtering mode. See \"Async loading strategy\" above."
       },
+      {
+        "name": "show_search_highlighting",
+        "type": "Boolean",
+        "default": "`true`",
+        "description": "Only relevant in async mode (`src:` must be set). When `true` (default), the client highlights matching text using the CSS Custom Highlight API or `<mark>` elements. When `false`, the client skips highlighting entirely; the server is responsible for including highlight markup (e.g. `<mark>` tags) in the returned HTML fragment."
+      },
       {
         "name": "tree_view_arguments",
         "type": "Hash",
@@ -20499,6 +20518,19 @@
           ]
         }
       },
+      {
+        "preview_path": "primer/open_project/filterable_tree_view/async_server_highlights",
+        "name": "async_server_highlights",
+        "snapshot": "false",
+        "skip_rules": {
+          "wont_fix": [
+            "region"
+          ],
+          "will_fix": [
+            "color-contrast"
+          ]
+        }
+      },
       {
         "preview_path": "primer/open_project/filterable_tree_view/async_form_input",
         "name": "async_form_input",
@@ -21787,7 +21819,7 @@
       {
         "name": "collapsed_search",
         "type": "Boolean",
-        "default": "`false`",
+        "default": "`true`",
         "description": "When true, the search bar starts collapsed as an icon button on all screen sizes. Clicking expands it."
       },
       {
@@ -21938,8 +21970,8 @@
         }
       },
       {
-        "preview_path": "primer/open_project/sub_header/collapsed_search",
-        "name": "collapsed_search",
+        "preview_path": "primer/open_project/sub_header/expanded_search",
+        "name": "expanded_search",
         "snapshot": "false",
         "skip_rules": {
           "wont_fix": [
diff --git a/static/previews.json b/static/previews.json
index cf25e440cc..39aa5ce202 100644
--- a/static/previews.json
+++ b/static/previews.json
@@ -4515,6 +4515,19 @@
           ]
         }
       },
+      {
+        "preview_path": "primer/open_project/filterable_tree_view/async_server_highlights",
+        "name": "async_server_highlights",
+        "snapshot": "false",
+        "skip_rules": {
+          "wont_fix": [
+            "region"
+          ],
+          "will_fix": [
+            "color-contrast"
+          ]
+        }
+      },
       {
         "preview_path": "primer/open_project/filterable_tree_view/async_form_input",
         "name": "async_form_input",
@@ -4889,12 +4902,12 @@
   },
   {
     "name": "heading",
-    "component": "OpenProject::Heading",
-    "status": "open_project",
-    "lookup_path": "primer/open_project/heading",
+    "component": "Heading",
+    "status": "beta",
+    "lookup_path": "primer/beta/heading",
     "examples": [
       {
-        "preview_path": "primer/open_project/heading/playground",
+        "preview_path": "primer/beta/heading/playground",
         "name": "playground",
         "snapshot": "false",
         "skip_rules": {
@@ -4907,7 +4920,7 @@
         }
       },
       {
-        "preview_path": "primer/open_project/heading/default",
+        "preview_path": "primer/beta/heading/default",
         "name": "default",
         "snapshot": "true",
         "skip_rules": {
@@ -4923,12 +4936,12 @@
   },
   {
     "name": "heading",
-    "component": "Heading",
-    "status": "beta",
-    "lookup_path": "primer/beta/heading",
+    "component": "OpenProject::Heading",
+    "status": "open_project",
+    "lookup_path": "primer/open_project/heading",
     "examples": [
       {
-        "preview_path": "primer/beta/heading/playground",
+        "preview_path": "primer/open_project/heading/playground",
         "name": "playground",
         "snapshot": "false",
         "skip_rules": {
@@ -4941,7 +4954,7 @@
         }
       },
       {
-        "preview_path": "primer/beta/heading/default",
+        "preview_path": "primer/open_project/heading/default",
         "name": "default",
         "snapshot": "true",
         "skip_rules": {
@@ -8235,8 +8248,8 @@
         }
       },
       {
-        "preview_path": "primer/open_project/sub_header/collapsed_search",
-        "name": "collapsed_search",
+        "preview_path": "primer/open_project/sub_header/expanded_search",
+        "name": "expanded_search",
         "snapshot": "false",
         "skip_rules": {
           "wont_fix": [
@@ -9808,6 +9821,19 @@
             "color-contrast"
           ]
         }
+      },
+      {
+        "preview_path": "primer/alpha/tree_view/doubled_path",
+        "name": "doubled_path",
+        "snapshot": "false",
+        "skip_rules": {
+          "wont_fix": [
+            "region"
+          ],
+          "will_fix": [
+            "color-contrast"
+          ]
+        }
       }
     ]
   },