Zcash
Zcash Ironwood upgrade: What's changed after the Orchard bug?
Zcash has completed its Ironwood network upgrade, replacing its vulnerable Orchard shielded pool with a formally verified alternative designed to prevent undetectable counterfeiting while beginning the migration of shielded funds into the new pool.
Zcash says Ironwood proof rules out undetectable counterfeiting bugs
Zcash researchers published more than 2,700 machine-checked theorems designed to rule out undetectable counterfeiting bugs in Ironwood.
Ironwood Goes Live as Zcash Locks Down Orchard and Forces a $1.8B Migration
Zcash activated its Ironwood network upgrade on Tuesday, replacing its vulnerable Orchard shielded pool with a hardened system designed to restore independent verification of the cryptocurrency's circulating supply. The NU6.
Fortitude Opens New Nebraska Facility to Boost Zcash Mining Efficiency
Fortitude launched a 12-megawatt mining plant in Grand Island, Nebraska, boosting its contracted capacity to over 60 MW across four states. The facility operates at an estimated electricity rate of $0.045 per kilowatt-hour, reducing operating costs from around $70 to nearly $40 per ZEC.
Zcash Activates Ironwood Upgrade After Counterfeiting Scare
The long-awaited network upgrade retires Zcash's vulnerable Orchard shielded pool and introduces new safeguards to protect the cryptocurrency's supply.
Ironwood Goes Live on Zcash, Closing the Long-Standing Shielded Pool at Block 3,428,143
Zcash activated Ironwood at block 3,428,143, sealing Orchard to new deposits and opening a new shielded pool that began with zero ZEC. Orchard held about 3.66 million ZEC worth roughly $1.7 billion, while a turnstile now caps withdrawals at verified historical deposits.
Zcash activates Ironwood upgrade after Orchard security flaw
Zcash activated its Ironwood upgrade, introducing a new shielded pool that strengthens transaction security and makes the integrity of the ZEC supply independently verifiable. Zcash activates Ironwood upgrade after Orchard security flaw.
Zcash activates Ironwood upgrade, launching new shielded pool after Orchard vulnerability
Ironwood represents something of a unified effort across Zcash's developer ecosystem after Shielded Labs found a bug in Orchard.
ZEC Price Climbs After Zcash Ironwood Upgrade Goes Live
Today the ZEC price is grabbing the spotlight as traders caught attention after the Zcash Ironwood network upgrade officially went live, adding fresh momentum to an already bullish technical structure.
Barry Silbert-backed Zcash miner Fortitude brings Nebraska facility online to cut its ZEC production costs
Fortitude expects its new 12-megawatt mining facility to cut its direct cash mining cost from about $70 to roughly $40 per ZEC.
Zcash seals $1.7 billion shielded pool as Ironwood upgrade activates
The upgrade retires Orchard, where a counterfeiting bug sat undetected for four years. Every coin inside now has to leave through a gate that caps withdrawals at verified deposits.
Ironwood and Supply Verifiability: Zcash's Moment
The activation of Ironwood (NU6.3) at block height 3,428,143 on July 28, 2026, is not a routine update. Nor is it, strictly speaking, a security patch, given that the emergency fix NU6.2 already fulfilled that function on June 3.
