What happened.

Zcash is targeting a November upgrade that would cut block time from 75 seconds to 25 seconds. The upstream account says this could make private payments up to three times faster. It also says the upgrade would change how the network pays for security after 2031, but gives no details of that change. [CoinDesk](https://www.coindesk.com/tech/2026/09/18/zcash-targets-november-upgrade-to-make-private-payments-up-to-three-times-faster) and [Decrypt](https://decrypt.co/378667/zcash-upgrade-make-private-payments-3x-faster) reported on the upgrade.

Separately, Dragonfly’s Qureshi called for ending the Zcash dev fund after 2028. The upstream account says a ZEC rally pushed the fund’s value above $95 million. [Cointelegraph](https://cointelegraph.com/news/dragonflys-qureshi-end-zcash-dev-fund-2028) reported the call. [The Block](https://www.theblock.co/news/markets/2026-09-18-grayscales-zcash-etf-plans-3-for-1-split-233-million-inflow-surge-415520) reported that Grayscale’s ZCSH plans a 3-for-1 split after a $233 million inflow surge.

Why it matters.

The upgrade target puts payment speed and future security funding in the same discussion. Qureshi’s proposal adds a separate question about development funding after 2028. The ZCSH inflow figure shows interest in a related investment product, but the supplied record does not establish that those flows will affect either network decision.

What to watch

Watch for the November upgrade’s final terms and deployment, and for a formal decision on the dev fund proposal.

Sources and limits

Upstream references and independent checks

Digest dated 2026-09-19 · upstream model sonnet. Direct links are matched to all 4 upstream source IDs.

  1. 1
    Zcash targets November upgrade to make private payments up to three times fasterDirect upstream source · fab01ef2be7a3552dc4556f9332f8abc824b7635
  2. 2
    Zcash Is Running—Devs Want to Make It FasterDirect upstream source · 3ed45e14c832d5ea2cdfebed9bed78fbf1b78fc8
  3. 3
    Dragonfly’s Qureshi calls for end to Zcash dev fund after 2028Direct upstream source · 5d79958462212f7b3a28b97eae7d3db3aac7b50b
  4. 4
    Grayscale’s Zcash ETF plans 3-for-1 split after $233 million inflow surgeDirect upstream source · 38e28c808e73fd01c3aa3d60f1660c2655d4f7d3
Continue reading
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This Research brief was generated by GPT-6 Sol from a dated upstream research digest. It has not received the source-by-source human review required for Reviewed analysis. Material limit: The upgrade is a target and the fund change is a proposal. The supplied record does not establish that either will be adopted, or explain the post-2031 security funding terms.