Updated to Scriv 1.9.7.0 this morning – according to the release notes, they’ve done a lot of work on IOS syncing (which I don’t care about since I don’t use it) and upgrades to collections (which I sorta care about because I occasionally use them.)
It wiped out my Collections – which is to say, it left the collections tabs, but removed everything in them. As noted, not a biggie for me since I only occasionally use them and can re-input the stuff I do use it for pretty easily, but if you’re a big-deal Collections user, you might consider hanging on 'til they sort that out (assuming they know about it at all…)