wp-includes/SimplePie/src/Misc.php:2079Get the SimplePie build timestamp
public static function get_build() { if (static::$SIMPLEPIE_BUILD !== null) { return static::$SIMPLEPIE_BUILD; } $root = dirname(__FILE__, 2); if (file_exists($root . '/.git/index')) { static::$SIMPLEPIE_BUILD = filemtime($root . '/.git/index'); return static::$SIMPLEPIE_BUILD; } elseif (file_exists($root . '/SimplePie')) { $time = 0; foreach (glob($root . '/SimplePie/*.php') as $file) { if (($mtime = filemtime($file)) > $time) { $time = $mtime; } } static::$SIMPLEPIE_BUILD = $time; return static::$SIMPLEPIE_BUILD; } elseif (file_exists(dirname(__FILE__) . '/Core.php')) { static::$SIMPLEPIE_BUILD = filemtime(dirname(__FILE__) . '/Core.php'); return static::$SIMPLEPIE_BUILD; } static::$SIMPLEPIE_BUILD = filemtime(__FILE__); return static::$SIMPLEPIE_BUILD; }One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
none to int.verified against sourcesrc/wp-includes/SimplePie/src/Misc.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.