https://www.youtube.com/watch?v=gxtftZB7_jA Discussion around Byzantium HF dates begins at ~24:00 and concludes at ~38:44 Current goal will be to set the HF for Block #4.37 million which should be mined on October 17th (can be listened to specifically at 38:13 time-stamp). This will give the team further time to test but isn't too close to DevCon3.