Zcash Foundation ๐ก๏ธ
@ZcashFoundation
US-based 501(c)(3) public charity that builds financial privacy infrastructure for the public good, with a special focus on the Zcash protocol and blockchain.
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Yesterday, @ValarGroup and @TachyonZcash announced Zakura, a new Zcash full node built from the Zebra codebase. We want to state plainly: this is good for Zcash, and we welcome it.
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ZF Engineering Update - June 29 to July 12 ๐ ๏ธ
๐ฃ Zebra v6.0.0 is out with full NU6.3 "Ironwood" support
๐ฑ New shielded pool + v6 transaction format
๐ Several security fixes
All operators should upgrade before activation ๐
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Zcash's Ironwood mainnet activation height has been set and tagged! All of the major organizations are committed to activation of NU6.3 at height 3428143, which is approximately July 28th at 8AM EST.
Together with @zodl_co, @ZcashFoundation, @ValarGroup and @ShieldedLabs, we're advocating for a network upgrade that would make ZEC's circulating supply auditable, providing additional reassurance that no counterfeiting occurred in the Orchard pool before this week's bugfix.
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๐จ No Arborist Call This Week - Next Call July 23rd
This weekโs Zcash Arborist Call, scheduled for Thursday, July 9th, is canceled. Many regular participants are traveling to the ZODL Summit.
Calls will resume at the next regularly scheduled time: Thursday, July 23rd.
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๐จ Zebra 6.0.0-rc.0 is out!
๐ฑ NU6.3 "Ironwood" Testnet support (new shielded pool + v6 tx format)
๐ Multiple security and bug fixes
๐ฆ Reproducible Docker images and signed pre-built binaries for Linux via cargo binstall
๐๏ธ State DB upgraded in place - no resync needed
๐ฆ Zebra-mined blocks now tagged with a ๐ฆ in the coinbase input
Testnet operators: please test ahead of 6.0.0 final ๐
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The @ZcashFoundation Shielded Aid Initiative empowers humanitarian organizations to deliver aid using Zcash Shielded Transactions.
Privacy with Purpose
Learn more:
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ZF Engineering Update - June 15โ28 ๐ ๏ธ
๐ Zebra releases are now reproducible & signed
๐ง Sync stall near chain tip fixed
๐ฑ Early work started on NU6.3 "Ironwood" support
Full update ๐
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๐ ZCG Election Results are in!
Congratulations to GGuy and Paul Brigner, elected to @ZcashCommGrants effective July 1! ๐
Thank you to all 14 candidates and every ZCAP member who voted.
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โฐ Zcon7 Scholarship applications close June 29 at 23:00 UTC - that's this Monday!
Vital community contributors can get:
โข Up to $1,000 in travel reimbursement
โข 4 nights lodging + CUN airport transit
Select "Zcon scholarship applicant" on the form and apply today ๐
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ZCAP members! These are the final days to vote in the ZCG June 2026 election!
๐ณ๏ธ Voting closes this Monday, June 29 at 20:00 UTC. Check your inbox for your SIV voting link. Learn about the election & candidates:
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The recording of yesterday's Zcash Arborist Call is live! These bi-weekly protocol development meetings track upcoming protocol deployment logistics, consensus node implementation issues, and protocol research.
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โฐ ZCAP members - you have one week to vote in the ZCG June 2026 election!
Voting closes Monday, June 29 at 20:00 UTC. 14 candidates. 2 seats. Check your inbox for your SIV voting link.
๐ Learn about the election & candidates:
Your vote shapes who stewards ZCG funding. Make it count!
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Zebra 5.2.0 is live! ๐ฆ
This release is all about robustness:
๐ช Local rollback window raised 10x (99 โ 1000 blocks) to better defend against sustained consensus splits
โ ๏ธ Nodes on v5.1.1 or earlier hit end-of-support ~July 25, ahead of NU7.
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๐ข Arborist Call update: After discussing with ecosystem partners, all Zcash Arborist Calls are moving to a single time slot - 15:00 UTC, same bi-weekly schedule.
Join links, calendar files, recordings & minutes:
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ZF Engineering Update โ June 1โ14 ๐ ๏ธ
โก Genesis-to-tip sync now completes in ~14 hours with no stalls
๐ก getpeerinfo RPC extended with additional fields
๐ผ Latest release: Zebra v5.1.1
All operators should upgrade to v5.0.0 or later.
Read the full update โ
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We are committed to transparency and openness with the Zcash community and our other stakeholders. Today, we are releasing our Q1 2026 report, which provides an overview of the work undertaken by our engineering team, as well as an overview of other activities during this period.
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ZF is now steward of the Zcash GitHub org, and the @zcash X handle โ and we're partnering with @ZecHub to keep Zcash's public voice in community hands.
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๐ Welcoming Valerie Leisten to the team as our Global Events and Operations Manager!
