diff --git a/.gitattributes b/.gitattributes
index 14c3c3594..84c7add05 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,4 @@
 /Tests export-ignore
 /phpunit.xml.dist export-ignore
-/.git* export-ignore
+/.gitattributes export-ignore
+/.gitignore export-ignore
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
deleted file mode 100644
index 4689c4dad..000000000
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ /dev/null
@@ -1,8 +0,0 @@
-Please do not submit any Pull Requests here. They will be closed.
----
-
-Please submit your PR here instead:
-https://github.com/symfony/symfony
-
-This repository is what we call a "subtree split": a read-only subset of that main repository.
-We're looking forward to your PR there!
diff --git a/.github/workflows/check-subtree-split.yml b/.github/workflows/check-subtree-split.yml
deleted file mode 100644
index 16be48bae..000000000
--- a/.github/workflows/check-subtree-split.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-name: Check subtree split
-
-on:
-  pull_request_target:
-
-jobs:
-  close-pull-request:
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Close pull request
-      uses: actions/github-script@v6
-      with:
-        script: |
-          if (context.repo.owner === "symfony") {
-            github.rest.issues.createComment({
-              owner: "symfony",
-              repo: context.repo.repo,
-              issue_number: context.issue.number,
-              body: `
-          Thanks for your Pull Request! We love contributions.
-
-          However, you should instead open your PR on the main repository:
-          https://github.com/symfony/symfony
-
-          This repository is what we call a "subtree split": a read-only subset of that main repository.
-          We're looking forward to your PR there!
-          `
-            });
-
-            github.rest.pulls.update({
-              owner: "symfony",
-              repo: context.repo.repo,
-              pull_number: context.issue.number,
-              state: "closed"
-            });
-          }
diff --git a/Filesystem.php b/Filesystem.php
index 59a8bebe4..52ecfbda6 100644
--- a/Filesystem.php
+++ b/Filesystem.php
@@ -686,7 +686,7 @@ public function dumpFile(string $filename, $content)
                 throw new IOException(sprintf('Failed to write file "%s": ', $filename).self::$lastError, 0, null, $filename);
             }
 
-            self::box('chmod', $tmpFile, @fileperms($filename) ?: 0666 & ~umask());
+            self::box('chmod', $tmpFile, self::box('fileperms', $filename) ?: 0666 & ~umask());
 
             $this->rename($tmpFile, $filename, true);
         } finally {
diff --git a/Path.php b/Path.php
index 01b561724..948e1c41b 100644
--- a/Path.php
+++ b/Path.php
@@ -365,7 +365,7 @@ public static function isAbsolute(string $path): bool
         }
 
         // Strip scheme
-        if (false !== $schemeSeparatorPosition = strpos($path, '://')) {
+        if (false !== ($schemeSeparatorPosition = strpos($path, '://')) && 1 !== $schemeSeparatorPosition) {
             $path = substr($path, $schemeSeparatorPosition + 3);
         }
 
diff --git a/Tests/PathTest.php b/Tests/PathTest.php
index 6964e5c6a..285d55f0d 100644
--- a/Tests/PathTest.php
+++ b/Tests/PathTest.php
@@ -375,6 +375,8 @@ public static function provideIsAbsolutePathTests(): \Generator
 
         yield ['C:/css/style.css', true];
         yield ['D:/', true];
+        yield ['C:///windows', true];
+        yield ['C://test', true];
 
         yield ['E:\\css\\style.css', true];
         yield ['F:\\', true];
diff --git a/composer.json b/composer.json
index be9da2f61..fd75755b2 100644
--- a/composer.json
+++ b/composer.json
@@ -18,8 +18,10 @@
     "require": {
         "php": ">=8.1",
         "symfony/polyfill-ctype": "~1.8",
-        "symfony/polyfill-mbstring": "~1.8",
-        "symfony/process": "^5.4|^6.4"
+        "symfony/polyfill-mbstring": "~1.8"
+    },
+    "require-dev": {
+        "symfony/process": "^5.4|^6.4|^7.0"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Filesystem\\": "" },