Hi! We're currently working on getting 2.7 licensed out (KOD is on 2.7 already), which should include among other things:
We replaced Kiln's heartbeat (analogous to FogBugz Heartbeat) with Redis! This is more of a silent change, but background tasks should run more robustly now. It also makes it easier for our support team to debug background tasks that fail.
Live reviews! Reviews will now auto-update when new events come in. We took the opportunity to teach our email notifications to be quiet if you're viewing or have recently viewed the review.
Beefier API: case association and dissociation and commiting.
Kiln Client now lets you create a review when you push (hg push --review).
The electric DAG should be faster than ever before.
You can now download archives of repositories at a revision in a TAR.GZ or ZIP file.
I'm definitely leaving things out (I'm not the release maintainer; I just went through our commit log :D). We'll post full release notes as it nears. Sorry we haven't be communicative lately! We've been heads down doing lots of behind-the-scenes infrastructure work, which we'll blog about after the holiday season.