[ElMiko]

I have been using Sigil 0.7.2 since... well, since 0.7.2. My workflow, my regex, my keyboard shortcuts, my clips... it's all a decade's worth of muscle memory at this point.

However, a few forum conversations have been haunting me. Specifically, as i understand it, the newer Sigil version allows for lookbehind regex of undefined length (i.e. the use of quantifiers like + and *), which 0.7.2 does not. For the most part I've been able to inelegantly work around this, often with the VERY elegant help of forum members. But... I'm still tempted.

The problem is I'm afeared of screwing up my existing Sigil set-up. Is there a way to upgrade to the newest version while also preserving a functional, unchanged version of 0.7.2 in case I just can't make the Shiny New Sigil work for me?

I'm running Windows 10 (64-bit)...