diff -u b/core/lib/Drupal/Component/PhpStorage/FileReadOnlyStorage.php b/core/lib/Drupal/Component/PhpStorage/FileReadOnlyStorage.php
--- b/core/lib/Drupal/Component/PhpStorage/FileReadOnlyStorage.php
+++ b/core/lib/Drupal/Component/PhpStorage/FileReadOnlyStorage.php
@@ -68,13 +68,6 @@
   /**
    * {@inheritdoc}
    */
-  public function writeable() {
-    return $this->writable();
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function writable() {
     return FALSE;
   }
diff -u b/core/lib/Drupal/Component/PhpStorage/FileStorage.php b/core/lib/Drupal/Component/PhpStorage/FileStorage.php
--- b/core/lib/Drupal/Component/PhpStorage/FileStorage.php
+++ b/core/lib/Drupal/Component/PhpStorage/FileStorage.php
@@ -147,13 +147,6 @@
   /**
    * {@inheritdoc}
    */
-  public function writeable() {
-    return $this->writable();
-  }
-
-  /**
-   * {@inheritdoc}
-   */
   public function writable() {
     return TRUE;
   }
diff -u b/core/lib/Drupal/Component/PhpStorage/PhpStorageInterface.php b/core/lib/Drupal/Component/PhpStorage/PhpStorageInterface.php
--- b/core/lib/Drupal/Component/PhpStorage/PhpStorageInterface.php
+++ b/core/lib/Drupal/Component/PhpStorage/PhpStorageInterface.php
@@ -55,16 +55,6 @@
    * Whether this is a writeable storage.
    *
    * @return bool
-   *
-   * @deprecated in drupal:9.1.0 and is removed from drupal:10.0.0.
-   *   Use \Drupal\Component\PhpStorage\writable() instead.
-   */
-  public function writeable();
-
-  /**
-   * Whether this is a writable storage.
-   *
-   * @return bool
    */
   public function writable();
 
only in patch2:
unchanged:
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -2189,7 +2189,7 @@ function install_check_requirements($install_state) {
       }
       // If the $file is not writable, throw an error.
       if (!$writable) {
-        $requirements["$file file writeable"] = [
+        $requirements["$file file writable"] = [
           'title' => $default_file_info['title'],
           'value' => t('The %file is not writable.', ['%file' => $default_file_info['title']]),
           'severity' => REQUIREMENT_ERROR,