Network Upgrades

Consensus changes deployed to the Zcash chain, and the ZIPs that specify them.

  1. Overwinter

    NU12018-06-26

    First network upgrade — transaction format v3, replay protection, expiry height.

    4 ZIPs →

  2. Sapling

    NU22018-10-29

    Shielded payments usable in practice — Sapling circuit, Bech32 addresses, HD wallets.

    6 ZIPs →

  3. Blossom

    NU32019-09-16

    Halved block target spacing and related consensus changes.

    2 ZIPs →

  4. Heartwood

    NU42020-07-16

    Shielded coinbase and relaxed Sapling signature verification.

    3 ZIPs →

  5. Canopy

    NU5-pre2020-11-18

    New development fund and Sapling binding-signature enforcement.

    3 ZIPs →

  6. NU5

    NU52022-05-31

    Orchard (Halo 2), transaction format v5, unified addresses.

    4 ZIPs →

  7. NU6

    NU62024-11-25

    End of the Canopy dev fund, direct discretionary grant funding, transparent-pool cap.

    3 ZIPs →

  8. NU6.1

    NU6.1

    introduces the Community-Governance Panel and a change to the spend restricting rules.

    1 ZIP →

  9. NU6.2

    NU6.2

    Consensus bug fixes and the Orchard temporary vulnerability mitigation.

    2 ZIPs →

  10. NU6.3

    NU6.3

    Adds a new signature scheme for ZIP 244 coinsights? See ZIP 258 for scope.

    1 ZIP →

  11. NU7

    NU7

    Proposed/future upgrade. ZIP 254 (Deployment of NU7) was withdrawn; successors are in draft.

    1 ZIP →