Zcash activates Ironwood upgrade, launching new shielded pool after Orchard vulnerability
Quick TakeZcash activated its Ironwood network upgrade, introducing a new formally verified shielded pool that reuses a patch zero-knowledge circuit while restricting the old Orchard pool to withdrawals only.Ironwood represents something of a unified effort across Zcash‘s developer ecosystem after Shielded Labs found a bug in Orchard, which tanked ZEC’s price by over 50% after it was disclosed. Zcashs Ironwood upgrade went live on Tuesday, introducing a new shielded pool for the privacy blockchain following concerns about the soundness of its earlier Orchard pool. Ironwood, which is also the name of the new pool, activated on schedule at block height 3,428,143 as part of the NU6.3 network upgrade. Orchard, meanwhile, will now be restricted to only support withdrawals, though removing funds will remain discretionary. Orchard was previously Zcash‘s primary privacy pool, accounting for nearly 88% of the blockchain’s shielded token supply at its height, with older shield pools Sapling and Sprout making up the rest, according to The Blocks data. According to a migration tracker, some 40,207 ZEC have migrated into Ironwood, while about 3.6 million tokens remain in Orchard. ZEC, which tanked over 50% after the Orchard bug was disclosed, dropped about 9% on Tuesday to $460 before recovering to about $475, according to