The longer answer is that there’s a lot of work underway on some of the fundamental storage stack underneath Sprites, which is stealing some of the feature development time (in exchange for unblocking a lot of said feature development). Hopefully there’ll be a lot more to share about that on the near horizon, but development is anything but dormant there
aside: sprites-js and the other SDKs are themselves a little underloved at the moment, if only because we mostly see people (and agents) consuming the API directly. I expect these will be brushed up in due course.