Changes to WPFC files

I use Wordfence plugin and I’m getting the following warnings:

Modified plugin file: wp-content/plugins/wp-fastest-cache/wpFastestCache.php
Modified plugin file: wp-content/plugins/wp-fastest-cache/js/toolbar.js
Modified plugin file: wp-content/plugins/wp-fastest-cache/inc/cache.php

This file belongs to plugin “WP Fastest Cache” version “0.8.6.1” and has been modified from the file that is distributed by www.remarpro.com for this version. Please use the link to see how the file has changed. If you have modified this file yourself, you can safely ignore this warning. If you see a lot of changed files in a plugin that have been made by the author, then try uninstalling and reinstalling the plugin to force an upgrade. Doing this is a workaround for plugin authors who don’t manage their code correctly. [See our FAQ on https://www.wordfence.com for more info]

I just checked your changelog and don’t see any updates so I’d like to know if the modified files are changes done by you.

Thank you.