It appears that Canaan has stopped publishing their source code in their GitHub repositories since the release of the A10 series. Given that the A10 (and presumably the A11) use cgminer — at least according to the only available documentation for the A10 — Canaan appears to have followed in the footsteps of the other manufacturers in violating cgminer's license.

If the A10 and A11 are using OpenWrt as the base OS, then Canaan is also violating OpenWrt's license by not publishing the source code for their fork of OpenWrt.

This is a regrettable development.