New Post: Is this project still active?

Good morning, I've noticed the last update to this project was about a year ago, and I was wondering a few things.

First of all, is this still an active project? I'd like to use it for a software implementation but I don't want to have to scrap it if it no longer becomes compatible because there's no more updates.

Second, where can I find the API documentation? The link under "Documentation" that leads to MITRE's website is no longer valid and I'm having trouble finding it online.

Thank you!
Andrew