Older version upgrade questions

Still using 14.6

I’m confused as to how I upgrade from 14.6 to 14.6.05
are there any detailed instructions online?

This is what the installation tab says about Upgrading the plugin

If you want to upgrade from the original cformsII from deliciousdays.com, please upgrade to version 14.6.0.5 first, make sure you upgraded your settings (resave your global settings and every form) and backup your database. Then deactivate the original plugin and install the current version of this fork.

Hoping you can help – we need to get this up to date.

https://ww.wp.xz.cn/plugins/cforms2/