Yes, it worth it. For two reasons: 1. 5.4 is end of life 2. 7.0 is a LOT faster. I cutted down the load time by half by only upgrading to 7.0. Now, issues yo

Yes, it worth it. For two reasons: 1. 5.4 is end of life 2. 7.0 is a LOT faster. I cutted down the load time by half by only upgrading to 7.0. Now, issues you could have: - Old WP versions that are using `mysql_` (instead of `mysqli_`); - Some plugins are using the old style constructor (a method with the same name as the class name instead of __construct) http://php.net/manual/en/migration70.deprecated.php http://php.net/manual/en/migration70.deprecated.php