New Release 6.0.0
zcashd 6.0.0 has been released, which will deploy Network Upgrade 6 (NU6) at the next Zcash halvening, at an activation height of 2726400. This will occur on or around November
October 7, 2024
New Release 5.10.0
zcashd 5.10.0 is a maintenance and security bugfix release, including support for NU6 on Testnet. A further upgrade will be needed for NU6 on Mainnet. All zcashd users should upgrade
August 27, 2024
New Release 5.9.0
zcashd 5.9.0 is a maintenance release that updates dependencies and sets a new end-of-service height to ensure continuity of services. (End-of-service information is available here.) All users are encouraged to
April 20, 2024
New Release 5.8.0
zcashd 5.8.0 is a maintenance release that updates dependencies and sets a new end-of-service height to ensure continuity of services.
January 4, 2024
A look back: NU5 and network sandblasting
This post details ECC’s motivations, challenges, and accomplishments with regard to zcashd Network Upgrade 5 (NU5) and the sandblasting attack.
December 7, 2023
New Release 5.7.0
zcashd 5.7.0 deprecates fetch-params.sh and zcash-fetch-params and bundles zk-SNARK parameters directly so they do not need to be downloaded or stored separately. All node operators, which include our mining and other ecosystem partners, should upgrade to this latest version as soon as possible.
October 5, 2023
New Release 5.6.0
Release 5.6.0 introduces the functionality necessary for light wallets to access spendable funds without fully scanning the blockchain. This is a critical component in the path to exiting emergency mode
June 15, 2023
New Release 5.5.0
Release 5.5.0 introduces a number of bug fixes and changes to the underlying libraries that support Zcash. Much of this work lays the foundation for the fund availability features coming with the next release.
April 27, 2023
Update: Addressing Zcash wallet performance issues
Electric Coin Co. (ECC) has been working since June to resolve Zcash wallet performance issues that are affecting users of third-party apps Edge, Nighthawk, and Unstoppable.* All three of these mobile wallets utilize the ECC SDK.Our engineers have made progress, however, work remains — including further updates to zcashd, lightwalletd, the ECC wallet SDKs, and the ECC prototype wallet — to fully restore good user experience in the impacted apps.
March 24, 2023
Zcash Proof-of-Stake Research
In August, ECC shared its rationale for moving Zcash from a proof-of-work consensus mechanism to proof-of-stake.
May 20, 2022
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 team found it quickly and subsequently identified and implemented a
March 23, 2022
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.
February 9, 2022
