diff --git a/src/Plugin/Preprocess/FileLink.php b/src/Plugin/Preprocess/FileLink.php
index 62af1fc..fe72e2c 100644
--- a/src/Plugin/Preprocess/FileLink.php
+++ b/src/Plugin/Preprocess/FileLink.php
@@ -108,7 +108,7 @@ class FileLink extends PreprocessBase {
     $variables['link'] = Link::fromTextAndUrl($link_text, Url::fromUri($url, $options));
 
     // Add the file size as a variable.
-    $variables->file_size = format_size($file_size);
+    $variables->file_size = \Drupal\Component\Utility\DeprecationHelper::backwardsCompatibleCall(\Drupal::VERSION, '10.2.0', fn() => \Drupal\Core\StringTranslation\ByteSizeMarkup::create($file_size), fn() => format_size($file_size));
 
     // Preprocess attributes.
     $this->preprocessAttributes();
diff --git a/src/Plugin/Preprocess/FileUploadHelp.php b/src/Plugin/Preprocess/FileUploadHelp.php
index bee0861..63e57f3 100644
--- a/src/Plugin/Preprocess/FileUploadHelp.php
+++ b/src/Plugin/Preprocess/FileUploadHelp.php
@@ -42,7 +42,7 @@ class FileUploadHelp extends PreprocessBase implements PreprocessInterface {
 
     $upload_validators = $variables['upload_validators'];
     if (isset($upload_validators['file_validate_size'])) {
-      $descriptions[] = t('@size limit.', ['@size' => format_size($upload_validators['file_validate_size'][0])]);
+      $descriptions[] = t('@size limit.', ['@size' => \Drupal\Component\Utility\DeprecationHelper::backwardsCompatibleCall(\Drupal::VERSION, '10.2.0', fn() => \Drupal\Core\StringTranslation\ByteSizeMarkup::create($upload_validators['file_validate_size'][0]), fn() => format_size($upload_validators['file_validate_size'][0]))]);
     }
     if (isset($upload_validators['file_validate_extensions'])) {
       $extensions = new FormattableMarkup('<code>@extensions</code>', [
diff --git a/src/Plugin/Setting/Advanced/Cdn/CdnProviderBase.php b/src/Plugin/Setting/Advanced/Cdn/CdnProviderBase.php
index 3b7d703..413598e 100644
--- a/src/Plugin/Setting/Advanced/Cdn/CdnProviderBase.php
+++ b/src/Plugin/Setting/Advanced/Cdn/CdnProviderBase.php
@@ -73,7 +73,7 @@ abstract class CdnProviderBase extends SettingBase {
         '@provider' => $provider->getLabel(),
       ]), 'error');
       foreach ($exceptions as $exception) {
-        watchdog_exception('bootstrap', $exception);
+        \Drupal\Component\Utility\DeprecationHelper::backwardsCompatibleCall(\Drupal::VERSION, '10.1.0', fn() => \Drupal\Core\Utility\Error::logException(\Drupal::logger('bootstrap'), $exception), fn() => watchdog_exception('bootstrap', $exception));
       }
     }
     return !!$exceptions;