diff --git a/wp-includes/class-wp-textdomain-registry.php b/wp-includes/class-wp-textdomain-registry.php
index 113ef3bd65..fe6d04b0a1 100644
--- a/wp-includes/class-wp-textdomain-registry.php
+++ b/wp-includes/class-wp-textdomain-registry.php
@@ -183,8 +183,8 @@ class WP_Textdomain_Registry {
 			return $files;
 		}
 
-		$cache_key = 'cached_mo_files_' . md5( $path );
-		$files     = wp_cache_get( $cache_key, 'translations' );
+		$cache_key = md5( $path );
+		$files     = wp_cache_get( $cache_key, 'translation_files' );
 
 		if ( false === $files ) {
 			$files = glob( $path . '*.mo' );
@@ -197,7 +197,7 @@ class WP_Textdomain_Registry {
 				$files = array_merge( $files, $php_files );
 			}
 
-			wp_cache_set( $cache_key, $files, 'translations' );
+			wp_cache_set( $cache_key, $files, 'translation_files', HOUR_IN_SECONDS );
 		}
 
 		return $files;
@@ -246,13 +246,13 @@ class WP_Textdomain_Registry {
 		foreach ( $translation_types as $type ) {
 			switch ( $type ) {
 				case 'plugin':
-					wp_cache_delete( 'cached_mo_files_' . md5( WP_LANG_DIR . '/plugins/' ), 'translations' );
+					wp_cache_delete( md5( WP_LANG_DIR . '/plugins/' ), 'translation_files' );
 					break;
 				case 'theme':
-					wp_cache_delete( 'cached_mo_files_' . md5( WP_LANG_DIR . '/themes/' ), 'translations' );
+					wp_cache_delete( md5( WP_LANG_DIR . '/themes/' ), 'translation_files' );
 					break;
 				default:
-					wp_cache_delete( 'cached_mo_files_' . md5( WP_LANG_DIR . '/' ), 'translations' );
+					wp_cache_delete( md5( WP_LANG_DIR . '/' ), 'translation_files' );
 					break;
 			}
 		}
diff --git a/wp-includes/load.php b/wp-includes/load.php
index 40947a0b20..b7bde142ec 100644
--- a/wp-includes/load.php
+++ b/wp-includes/load.php
@@ -876,6 +876,7 @@ function wp_start_object_cache() {
 				'site-queries',
 				'site-transient',
 				'theme_files',
+				'translation_files',
 				'rss',
 				'users',
 				'user-queries',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1762e61805..8f4665984d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-57829';
+$wp_version = '6.6-alpha-57831';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.