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Zcash Ecosystem Updates

A live view of engineering, governance, privacy, and adoption across the Zcash ecosystem.

Ecosystem UpdatesOct 11, 2026

Free Society Hack, Mumbai, 4–5 Nov: partners, mentors and judges wanted

Hey all, Sacha from WebZero here (the team behind the Free Society Hack happening Nov 4-5 in Mumbai formerly known as Hack To Dark). I wanted to make a dedicated post to serve as a call for people in the ecosystem who want to be part of it.

Foundation NewsOct 7, 2026

Zcash Foundation Welcomes a New Technical Program Manager

We are pleased to welcome Joan De Arcayne, who joins ZF as a Technical Program Manager. Joan has spent the past several years working in crypto, launching products, running experiments, and working closely with engineering teams. Over that

Zcash FoundationOct 6, 2026

ZF Engineering Update: 21 September - 5 October 2026

Over the past two weeks we shipped four Zebra releases. Zebra 6.4.0 and 6.4.1 brought security fixes, light wallet serving, lower transaction fees and a sync fix, and Zebra 6.4.2 was an emergency fix for a crash that any peer on the network

Foundation NewsOct 2, 2026

Zebra 7.0.0-rc.0: NU7 Arrives on Testnet

We are pleased to announce the release of Zebra 7.0.0-rc.0, the first release candidate for NU7, the next Zcash network upgrade. NU7 brings blocks every 25 seconds instead of every 75, a new Network Sustainability Mechanism that recycles pa

Zcash FoundationSep 28, 2026

Zebra 6.4.2: Emergency Fix for a Remotely Triggerable Crash

Zebra 6.4.2 is an emergency security release that fixes a high-severity vulnerability in Zebra 6.4.0 and 6.4.1 that lets any peer crash a node with a single network message. Both of those versions are recalled, and all operators running eit

Foundation NewsSep 25, 2026

Zebra 6.4.2 Release

Zebra 6.4.2: Emergency Fix for a Remotely Triggerable Crash Zebra 6.4.2 is an emergency security release that fixes a high-severity vulnerability in Zebra 6.4.0 and 6.4.1 that lets any peer crash a node with a single network message. Both o

Zcash FoundationSep 24, 2026

Zebra 6.4.0 and 6.4.1: Security Fixes, Light Client Serving, and NU7 Preparation (Updated)

Do not run Zebra 6.4.0 or 6.4.1 — both are recalled. A high-severity bug let any peer crash a node with one message, no handshake or auth required. Zebra 6.4.2 fixes it and includes everything from both recalled releases. 6.3.0 and earlier

Foundation NewsSep 24, 2026

Zebra 6.4.0 and 6.4.1: Security Fixes, Light Client Serving, and NU7 Preparation

Zebra 6.4.0 is a security release that also adds an experimental lightwalletd-compatible gRPC server, lowers the ZIP 317 conventional fee, speeds up block template delivery for miners, and moves the end-of-support halt earlier in preparatio

Zcash FoundationSep 22, 2026

ZF Engineering Update: 7 - 20 September 2026

Over the past two weeks, we worked on reducing delays for miners, improving Zebra’s handling of competing blocks, and supporting lower transaction fees. We also restored documentation updates, improved our testing and monitoring, and addres

Foundation NewsSep 14, 2026

ZCAP Polling Results: NU7 Scope

The ZCAP poll on the outstanding scope questions for NU7 has closed, having run since August 27th concurrently with the coinholder poll. This poll followed the NU7 Sentiment Polling from earlier this year, which surfaced where the community

Foundation NewsSep 10, 2026

The Zcon7 Program: Building What Comes Next

The Zcon7 program is live! View the full program and speakers lineup. Zcon7 is happening October 27–29 in Cancún, Mexico. This year, we designed Zcon differently. There are fewer presentations, more conversations, and more opportunities to

Zcash FoundationSep 9, 2026

ZF Engineering Update: 24 August - 6 September 2026

Over the last two weeks we focused on making Zebra sync reliably all the way to the chain tip, which had been a recurring problem since the NU6.3 upgrade. We also replaced Mergify with GitHub’s native merge queue, simplifying our CI workflo

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