diff --git a/wp-includes/l10n.php b/wp-includes/l10n.php
index a0c7bba903..9467a6b19c 100644
--- a/wp-includes/l10n.php
+++ b/wp-includes/l10n.php
@@ -717,6 +717,28 @@ function load_textdomain( $domain, $mofile, $locale = null ) {
 
 	$l10n_unloaded = (array) $l10n_unloaded;
 
+	/**
+	 * Filters whether to short-circuit loading .mo file.
+	 *
+	 * Returning a non-null value from the filter will effectively short-circuit
+	 * the loading, returning the passed value instead.
+	 *
+	 * @since 6.3.0
+	 *
+	 * @param bool|null   $loaded The result of loading a .mo file. Default null.
+	 * @param string      $domain Text domain. Unique identifier for retrieving translated strings.
+	 * @param string      $mofile Path to the MO file.
+	 * @param string|null $locale Locale.
+	 */
+	$loaded = apply_filters( 'pre_load_textdomain', null, $domain, $mofile, $locale );
+	if ( null !== $loaded ) {
+		if ( true === $loaded ) {
+			unset( $l10n_unloaded[ $domain ] );
+		}
+
+		return $loaded;
+	}
+
 	/**
 	 * Filters whether to override the .mo file loading.
 	 *
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 0343c7ccee..e334013a70 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-alpha-55927';
+$wp_version = '6.3-alpha-55928';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.