I agree with that 🙂 just add it to the changelog, other than that I really appreciate your plugin.
Hi, well having the whole site blocked was pretty frustraing! Thanks for improvement, but you should clearly state in the changelog that the plugin will just stop working if a version after 2.1.1 is installed with PHP < 5.6, so that people forced to use older versions of PHP can disregard future updates and still use the plugin, without recovering from backup.
