plugin updates

wp/wp-includes/compat.php

@@ -2,6 +2,11 @@
 /**
  * WordPress implementation for PHP functions either missing from older PHP versions or not included by default.
  *
+ * This file is loaded extremely early and the functions can be relied upon by drop-ins.
+ * Ergo, please ensure you do not rely on external functions when writing code for this file.
+ * Only use functions built into PHP or are defined in this file and have adequate testing
+ * and error suppression to ensure the file will run correctly and not break websites.
+ *
  * @package PHP
  * @access private
  */
@@ -549,3 +554,8 @@ if ( ! defined( 'IMAGETYPE_AVIF' ) ) {
 if ( ! defined( 'IMG_AVIF' ) ) {
 	define( 'IMG_AVIF', IMAGETYPE_AVIF );
 }
+
+// IMAGETYPE_HEIC constant is not yet defined in PHP as of PHP 8.3.
+if ( ! defined( 'IMAGETYPE_HEIC' ) ) {
+	define( 'IMAGETYPE_HEIC', 99 );
+}