Can I go back to the old theme if I upgrade and don't like it?

In short, no! So, take your time to check out how it will look before you make the decision to click the upgrade button.

We will be providing you the option to download your current theme files before you upgrade, so technically if you want to re-upload those and go back to how it was, you can. However, if you do that it will be as a custom theme, and will no longer be supported by us, so you'll need to be confident about carrying out that process yourself.