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.
I doubt it.
Since if you check history, rather than guessing, they've usually released it later than the miner.
However, -ck also effectively shut down the cgminer git so go complain to him.