wp-includes/SimplePie/src/SimplePie.php:1293Set the user agent string
$uastringoptionalnull public function set_useragent($ua = null) { if ($ua === null) { $ua = \SimplePie\Misc::get_default_useragent(); } $this->useragent = (string) $ua; }One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
none to void.verified against sourcesrc/wp-includes/SimplePie/src/SimplePie.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.