One of my ongoing disappointments was the removal some time ago of the door lock “know control” which notified me when my door was unlocked or locked. Well- it’s been restored but different setup. I had reached out to support some time ago and they just let me know it’s been added. You now set it up through “Smart Home Monitor.” Upper right corner 3 dots, then “configure” and then “custom.” The option to select a lock is now there. Glad he told me or I might never have known! 
Edit- just saw the announcement here as well!