In reply to Jeffrey.

You're right, we can't test every environment or existing site. Here's what we do.

I won't speak for Go Daddy and Media Temple but our testing includes installing the top 20 WordPress plugins onto our QA environments to ensure compatibility off the bat.

We employ one person whose sole job it is to perform random testing and address compatibility issues. We also have over 1,000 members of our beta testing program sharing data from their sites including automatically reporting errors and lists of their installed plugins & themes.

99.5% of all errors we receive are due to a Walkthrough compatibility issue (for example, a Walkthrough won't run or breaks at a certain point) and we have the ability to fix that without pushing a plugin update. A Walkthrough error does not affect site function because it simply stops the Walkthrough from running.

The other 0.05% of all errors are addressed quickly through plugin updates. You'll notice we push quite often (which is a whole other debate).

I'll also mention that SIDEKICK is only compatible with the current version of WordPress plus one major release previous (currently 4.1 and 4.0). If you are running anything older, SIDEKICK simply doesn't appear on your Dashboard, even when enabled.

We are an open book when it comes to this stuff and we're always learning so if you have any further questions about our process, please ask here or email me directly at ben@sidekick.pro.