The T3 framework comes with the option of displaying a link in a post or article as a button. This tutorial shows you how to display a pretty button instead of a text link.
The menu item "Redirections" is missing in the menu "Components" in the backend, although the plugin is activated. Solution of the problem in this article.
If you want to use the "Joomspirit Theme" for "JComments" in combination with Recaptcha v2, you have to change the template files a little bit. Here is the documentation.
I've been using Googles Two-Factor-Authentification for for Joomla for quite a while. But after restoring my iPhone i noticed, that the backup didn't include all the configured accounts. I was locked out of my Joomla-accounts without a way to surpass the Google Two-Factor-Authentication.
The following manual describes how to deactivate Two-Factor-Authentication via the database-backend to regain access to the Joomla-backend.