bitcoin BIP91

On July 22, 2017, at approximately 04:46:31 UTC at block height 477120 — BIP91 was activated on the Bitcoin network. As of this point, if the Segwit2x plan is successful, blocks that don’t signal Segregated Witness (BIP141) will be rejected.
Segwit2x Progresses Forward
BIP91 has activated on the Bitcoin network after it was enforced by a collaborative effort of mining pools. Over the course of the past 24-hours, nearly every block on the network has been signaling for the protocol change. The threshold for Segwit activation is 80 percent of the network, and 88.2 percent has shown signaling support in the last 24 hours.
BIP91 Activates: Grace Period Ends
The past two and half days have allowed miners time to upgrade their nodes, as from now on every block not signaling Segwit (bit-1) should be rejected. If all goes well and everybody is on board with Segwit (bit-1) blocks, then it will ensure Segwit’s lock-in period. All of these signaling phases make sure everyone agrees, and the next chapter of consensus commences. Roughly around the end of August, the Segwit protocol will be officially implemented and active on the Bitcoin network.