worse than bad – messed up my current site from latest-version

Please follow best practices when upgrading mission critical software on your site. Use a staging/test environment to test updates to anything on your site. That way your customer won’t ever see a messed up page.

https://www.woothemes.com/2013/02/preparing-your-website-for-woocommerce-2-0/

I guess the question is, why do WE have to test it?
And how do we fix it if it is messed up? Of course these sites are mission critical. We are using WooCommerce to SELL stuff. If they break we lose money. I’m using a WooTheme and Woo approved plugins- all up to date.

You guys should definitely check out https://docs.woothemes.com/document/testing-updates-using-a-staging-environment/

There are simply too many configurations/combinations of other plugins to test every scenario, so be responsible and test your sites first.