Mmm. Yeah, this is a sensible topic to raise. Back when I was on a free database, I was confident I wouldn't have space for previous revisions. However now that I'm paying for the database, we've got a good amount of space, so storing previous revisions is a fairly plausible enhancement.

It wouldn't be insanely difficult, but it would be a moderate amount of work; however it's a very sensible thing to ask for. No promises, but I'll look into it further.

In theory I could directly import MSE files rather than making people have to export. I'm getting a bit more time in the evenings now than I was a couple of months ago so I could have a go at that myself. I've got a good sample MSE set I can be using.

Mmm. Yeah. For a long time this was a feature which I knew would be nice but I was imagining would never happen, because the database space required is at least an order of magnitude greater than for Multiverse's current implementation. In particular, this would make my database size expand past the limit of Heroku's free hosting plan.

But that was quite a number of months ago. And, erm, the database is already four times the size that Heroku supposedly limit their free hosting plan to, and I haven't been charged or run up against any database size limits. So perhaps I could give this a try.

It's possible it might precipitate the inevitable move to paid-for hosting, at which point I probably would stick up a Paypal Donate button somewhere on the site. And I quite like not being at that state yet.