reverted:
--- b/tests/src/Kernel/ImagecacheExternalResponsiveImageFormatterTest.php
+++ a/tests/src/Kernel/ImagecacheExternalResponsiveImageFormatterTest.php
@@ -208,7 +208,7 @@
    * @return string[][]
    *   The test cases.
    */
+  public function providerLinkSetting(): array {
-  public static function providerLinkSetting(): array {
     return [
       'Field not using link' => [
         'link setting' => '',
only in patch2:
unchanged:
--- a/imagecache_external.info.yml
+++ b/imagecache_external.info.yml
@@ -3,5 +3,5 @@ name: Imagecache External
 description: Allows you to fetch external images and use image styles on them.
 dependencies:
   - drupal:image
-core_version_requirement: ^9.3 || ^10
+core_version_requirement: ^10.1 || ^11
 configure: imagecache_external.admin_settings
only in patch2:
unchanged:
--- a/src/TwigExtension.php
+++ b/src/TwigExtension.php
@@ -40,7 +40,7 @@ class TwigExtension extends AbstractExtension {
    */
   public function getFilters() {
     return [
-      new TwigFilter('imagecache_external', [$this, 'imageCacheExternal']),
+      new TwigFilter('imagecache_external', $this->imageCacheExternal(...)),
     ];
   }
 
only in patch2:
unchanged:
--- a/tests/modules/imagecache_external_test/imagecache_external_test.info.yml
+++ b/tests/modules/imagecache_external_test/imagecache_external_test.info.yml
@@ -1,4 +1,4 @@
 name: 'Imagecache External test'
-core_version_requirement: ^9.3 || ^10
+core_version_requirement: ^10.1 || ^11
 package: 'Display Suite'
 type: module
\ No newline at end of file