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upgrade_400 ›

Since4.0.0
Deprecatedn/a
upgrade_400 ( No parameters )
Defined at:
Codex:

Execute changes made in WordPress 4.0.0.



Source

function upgrade_400() {
	global $wp_current_db_version;
	if ( $wp_current_db_version < 29630 ) {
		if ( ! is_multisite() && false === get_option( 'WPLANG' ) ) {
			if ( defined( 'WPLANG' ) && ( '' !== WPLANG ) && in_array( WPLANG, get_available_languages() ) ) {
				update_option( 'WPLANG', WPLANG );
			} else {
				update_option( 'WPLANG', '' );
			}
		}
	}
}