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The blockchain network, Zcash successfully underwent its “Heartwood” hard fork on Thursday. The fork occurred at block 903,000, 10:56 UTC, and represents the fourth “major” network upgrade since the network’s emergence. Heartwood seeks to offer improvements to the efficiency of proofs for light clients and will make coinbase assets, namely those mined directly by miners, private from genesis, theoretically improving the network’s overall private UTXO set.