So, wait. Let me understand this.
Now that BLK's codebase is 0.12v, it supports SegWit/LN and all the other goodies which come with the same version?
What is segwit/ln?
bitcoin core : segwit and lightning network
0.13 is segwit code. To remain neutral to both strands of development (ie rat4 is still maintaining a client and may have other plans this summer), the codebase was brought up to 0.12 which allows for loads of other stuff but doesn't automatically assume a political position re:segwit etc.