This is a fairly straightforward bug fixing release. We're back from our week's break now, and while we were away some bugs were reported. I've gone through and fixed some of them, including one or two common ones. If all goes to plan, this should be a solid release to work with.
If you're auto-updating from r57, there have been a lot of changes in the releases in between, including a new Physics engine! Check the past changelogs on the left.
The next major feature planned is families. Updates might slow down for a while as that's developed. It's a really big and complex feature that affects pretty much all the code. So don't worry if there's a week or two with no updates - we're still working hard :)