wp-admin/includes/upgrade.php:2337Executes changes made in WordPress 6.3.0.
function upgrade_630() { global $wp_current_db_version; if ( $wp_current_db_version < 55853 ) { if ( ! is_multisite() ) { // Replace non-autoload option can_compress_scripts with autoload option, see #55270 $can_compress_scripts = get_option( 'can_compress_scripts', false ); if ( false !== $can_compress_scripts ) { delete_option( 'can_compress_scripts' ); add_option( 'can_compress_scripts', $can_compress_scripts, '', true ); } } }}Introduced in 6.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/upgrade.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.