OpenWrt 15.05.1 "Chaos Calmer" was released more than a year ago. I haven't seen many updates. I wonder if there's an update channel that I'm missing.

Specifically, here is where all updates are coming from: https://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/ge...

No updates since March 2016.

EDIT: Has development has moved to the LEDE project? I don't understand what's happening in the OpenWRT/LEDE split. There appears to be a fairly clean upgrade path, though: https://forum.lede-project.org/t/upgrade-from-openwrt-to-led...