We announced it as part of the Monero Missive 10 days ago: https://bitcointalk.org/index.php?topic=583449.msg7847156#msg7847156. The Github branch was linked to in that announcement.

Same goes for proper daemonisation/service architecture of the daemon and rpcwallet: https://github.com/mikezackles/bitmonero/tree/daemonize_wip

Same goes for the QoS system to reduce bandwidth hammering: https://github.com/rfree2monero/bitmonero/tree/dev-rfree

All of those have been mentioned in the Missives and the repos have been linked. There's no point in hiding the code. The more eyes on it, the better.