wp-includes/revision.php:107Saves revisions for a post after all changes have been made.
$post_idint$postWP_Post$updateboolfunction wp_save_post_revision_on_insert( $post_id, $post, $update ) { if ( ! $update ) { return; } if ( ! has_action( 'post_updated', 'wp_save_post_revision' ) ) { return; } wp_save_post_revision( $post_id );}Introduced in 6.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/revision.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.