Zcash Blossom is the next major network upgrade of Zcash (ZEC) scheduled to activate today at block height 653600 in a couple of hours. This mandatory network upgrade is designed to improve the network scalability and user experience by cutting block times in half (to about 75 seconds), making transaction confirmations faster, doubling network throughput and keeping transaction fees low. To keep the ZEC coin emission rate and halvening schedule of Zcash unchanged, the halved block times also require that the per-block reward be halved as well. The emission rate per time, however, remains unchanged. Other values based on block intervals will also be updated accordingly, such as end-of-service halt, default transaction expiry, and the number of confirmations required to consider a transaction final.