diff --git a/bibcite_footnotes.info.yml b/bibcite_footnotes.info.yml
index 81b03a0..bc2b601 100644
--- a/bibcite_footnotes.info.yml
+++ b/bibcite_footnotes.info.yml
@@ -1,7 +1,7 @@
 name: 'BibCite Footnotes'
 type: module
 description: 'Inline footnote links for BibCite References'
-core_version_requirement: ^8.0 || ^9
+core_version_requirement: ^8.0 || ^9 || 10
 package: 'Bibliography & Citation'
 dependencies:
   - bibcite:bibcite
diff --git a/bibcite_footnotes.module b/bibcite_footnotes.module
index bec0ebd..bbed64a 100644
--- a/bibcite_footnotes.module
+++ b/bibcite_footnotes.module
@@ -25,7 +25,7 @@ function bibcite_footnotes_theme() {
     ],
     'bibcite_footnote_list' => [
       'render element' => 'footnotes',
-      'path' => drupal_get_path('module', 'bibcite_footnotes') . '/templates',
+      'path' => \Drupal::service('extension.list.module')->getPath('bibcite_footnotes') . '/templates',
       'template' => 'bibcite-footnote-list',
       'variables' => [
         'notes' => [],
@@ -145,8 +145,9 @@ function bibcite_footnotes_preprocess_bibcite_footnote_list(&$variables) {
         $build[] = $citation_build;
       }
 
-      $render = render($build);
-      $item['sort'] = trim(strip_tags(render($citation_build)));
+      //$render = render($build);
+      $citation_build_render = \Drupal::service('renderer')->render($citation_build);
+      $item['sort'] = trim(strip_tags($citation_build_render));
     }
 
 //    $item['#markup'] = $render;
@@ -197,8 +198,8 @@ function bibcite_footnotes_preprocess_bibcite_footnote_link(&$variables) {
     $citation_data['#data']['page'] = $fn['page'];
     $class .= '-inline';
   }
-
-  $title = trim(strip_tags(render($citation_data)));
+  $citation_data_render = \Drupal::service('renderer')->render($citation_data);
+  $title = trim(strip_tags($citation_data_render));
   $url = Url::fromUserInput('#' . $fn['fn_id'], ['attributes' => ['id' => $fn['ref_id'], 'class' => $class, 'title' => $title]]);
 
 
@@ -307,7 +308,8 @@ function bibcite_footnotes_get_ckeditor_select_item($entity): array {
 
   $data = $serializer->normalize($entity, 'csl');
   $build = ['#theme' => 'bibcite_citation', '#data' => $data];
-  $citation_text = trim(strip_tags(render($build)));
+  $build_render = \Drupal::service('renderer')->render($build);
+  $citation_text = trim(strip_tags($build_render));
   // Attempt to match up pre-saved entities with the eventual saved ones.
   $citation_key = $entity->id->first()->getValue()['value'];
   return [$citation_text, $citation_key];
@@ -327,10 +329,11 @@ function bibcite_footnotes_preprocess_field(&$variables, $hook) {
     foreach($variables['element'] as $index => $element) {
       if (is_numeric($index)) {
         $renderable = $citation_tools->getRenderableReference($element['#bibcite_reference']);
+        $renderable = \Drupal::service('renderer')->render($renderable);
         $items[] = [
           'orig_index' => $index,
           'orig_element' => $element,
-          'rendered' => trim(strip_tags(render($renderable))),
+          'rendered' => trim(strip_tags($renderable)),
         ];
       }
     }
diff --git a/bibcite_footnotes_article_with_citations/bibcite_footnotes_article_with_citations.info.yml b/bibcite_footnotes_article_with_citations/bibcite_footnotes_article_with_citations.info.yml
index 3d8a67e..d290651 100644
--- a/bibcite_footnotes_article_with_citations/bibcite_footnotes_article_with_citations.info.yml
+++ b/bibcite_footnotes_article_with_citations/bibcite_footnotes_article_with_citations.info.yml
@@ -1,7 +1,7 @@
 name: 'BibCite Footnotes Article with Citations'
 type: module
 description: 'Example module to show a fully-configured content type and text format with Reference Footnotes.'
-core_version_requirement: ^8 || ^9
+core_version_requirement: ^8 || ^9 || ^10
 package: 'Bibliography & Citation'
 dependencies:
   - bibcite_footnotees:bibcite_footnotes
diff --git a/src/Plugin/CKEditorPlugin/ReferenceFootnotes.php b/src/Plugin/CKEditorPlugin/ReferenceFootnotes.php
index 069bc9d..71c225e 100644
--- a/src/Plugin/CKEditorPlugin/ReferenceFootnotes.php
+++ b/src/Plugin/CKEditorPlugin/ReferenceFootnotes.php
@@ -33,7 +33,8 @@ class ReferenceFootnotes extends CKEditorPluginBase {
     return [
       'reference_footnotes' => [
         'label' => t('Reference Footnotes'),
-        'image' => drupal_get_path('module', 'bibcite_footnotes') . '/js/plugins/reference_footnotes/images/icon.png',
+        'image' => \Drupal::service('extension.list.module')->getPath('bibcite_footnotes') .
+          '/js/plugins/reference_footnotes/images/icon.png',
       ],
     ];
   }
@@ -44,7 +45,7 @@ class ReferenceFootnotes extends CKEditorPluginBase {
   public function getFile() {
     // Make sure that the path to the plugin.js matches the file structure of
     // the CKEditor plugin you are implementing.
-    return drupal_get_path('module', 'bibcite_footnotes') . '/js/plugins/reference_footnotes/plugin.js';
+    return \Drupal::service('extension.list.module')->getPath('bibcite_footnotes') . '/js/plugins/reference_footnotes/plugin.js';
   }
 
   /**