wp-includes/post-formats.php:119Retrieves the array of post format slugs.
string[]function get_post_format_slugs() { $slugs = array_keys( get_post_format_strings() ); return array_combine( $slugs, $slugs );}Introduced in 3.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/post-formats.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.