NU5 activates on mainnet, eliminating trusted setup and launching a new era for Zcash

NU5, the first major upgrade since November 2020, includes the launch of the Orchard shielded payment protocol, utilizing the Halo proving system to remove reliance on complex setup ceremonies.

NU5 activates on mainnet, eliminating trusted setup and launching a new era for Zcash

New Release 5.0.0

The 5.0.0 release supports NU5 activation on mainnet, which will occur at a block height of 1687104 (May 31st), following the targeted EOS halt of our 4.6.0-2 and 4.7.0 releases on May 16th. Release binaries will be available later today and instructions on how to install can be found on our download site.

New Release 5.0.0

New Release 4.7.0

Release 4.7.0 marks a major milestone on the path to NU5.

New Release 4.7.0

New Release 4.6.0-2

4.6.0-2 is primarily a bugfix release that also bumps the End-of-Support height to May 16th. It backports bugfixes from v4.7.0-rc1.

New Release 4.6.0-2

NU5 activation and Halo Arc release delayed for remediation of consensus bug in testnet

During the course of testing NU5, a consensus bug emerged that caused the testnet chain to fork. The ECC Core […]

NU5 activation and Halo Arc release delayed for remediation of consensus bug in testnet

ECC Engineering: Year in Review

We had many successes in 2021 across all of our engineering-related teams including Core, Mobile, and DevSecOps, a team comprising what was previously the separate DevInfra and Security teams. These successes included the regular cadence of releases as well as breakthrough cryptographic research, developments to move the shielded wallet ecosystem forward, operational enhancements and advancements, and a continued demonstration of our commitment to security best practices, ensuring safe and secure releases and network upgrades. 

ECC Engineering: Year in Review

New Release 4.6.0-1

TL;DR: The 4.5.0, 4.5.1, and 4.5.1-1 zcashd nodes will reach End of Service on or about January 10th, 2022. Prior to that time, miners must upgrade to 4.6.0-1 and all other testnet and mainnet nodes should upgrade to either 4.6.0 or 4.6.0-1.

New Release 4.6.0-1

New Release 4.6.0

TL;DR: The 4.5.0, 4.5.1, and 4.5.1-1 zcashd nodes will reach End of Service on or about January 10, 2022. Prior […]

New Release 4.6.0

NU5 and Halo Arc timeline update

The new April activation target for NU5 will correspond with the release of the Halo Arc product suite, which includes an NU5-compatible Zcashd, an updated ECC Reference Wallet, updated mobile wallet SDKs, and features that will enable Zcash to be Shielded by Default.

NU5 and Halo Arc timeline update

ZSAs update: ECC research and paths forward

As part of our due diligence, we embarked on sentiment gathering, market research and economic modeling to better understand the possibilities of ZSAs and tradeoffs of different approaches.

ZSAs update: ECC research and paths forward

NU5 security assessments complete

NU5 security assessments are complete, and no serious or critical issues were found in either audit.

NU5 security assessments complete

New Release 4.5.1-1

This is a required update for all testnet nodes, and is highly recommended for mainnet nodes if you were using the deprecated getaddressesbyaccount RPC method.

New Release 4.5.1-1