You can now click on preview and see what has matched, and what it will be replaced with. You can slide the sliders in the middle to either leave each instance unchanged, or make the replacement.

That's it. Really quick and easy updates of even the largest projects. See full the list here.

I've tried to cover most cases with the regular expressions and replacements in the GitHub repo, but PLEASE CONTRIBUTE PULL REQUESTS if you have an optimisation or a new suggestion. We have a few months to get in shape for the change and it would be fantastic to have a great community repository that would get people up and running quickly.