wp-includes/atomlib.php:330$parser$prefix$uri function start_ns($parser, $prefix, $uri) { $this->_p("starting: " . $prefix . ":" . $uri); array_push($this->ns_decls, array($prefix,$uri)); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/atomlib.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.