Zcash Sapling upgrade and privacy protocol milestones (2016–2021)

1. Zcash Sprout setup ceremony held

   Oct 22, 2016Labels: Sprout setup, Multi-party ceremony

   • Zcash MPC
   • Zcash Comm

2. Zcash network launches with Sprout privacy

   Oct 28, 2016Labels: Zcash mainnet, Sprout

   • Zcash Comm
   • Zcash Comm

3. Powers of Tau ceremony completes for Sapling

   Apr 13, 2018Labels: Powers of, Zcash Foundation

   • ZFND
   • ECC

4. Overwinter upgrade activates (NU1)

   Jun 26, 2018Labels: Overwinter, NU1

   • Z Cash
   • ZIP 200

5. Sapling upgrade activates (NU2)

   Oct 29, 2018Labels: Sapling, NU2

   • Z Cash
   • Zcash Forum

6. Counterfeiting vulnerability disclosed as remediated

   Feb 5, 2019Labels: Counterfeiting fix, Sapling remediation

   • Z Cash
   • Z Cash

7. Blossom upgrade activates (NU3)

   Dec 11, 2019Labels: Blossom, NU3

   • Z Cash
   • Zcash Proto

8. Heartwood upgrade activates (NU4)

   Jul 16, 2020Labels: Heartwood, NU4

   • Z Cash
   • CoinDesk

9. Canopy upgrade activates with first halving (NU5)

   Nov 18, 2020Labels: Canopy, NU5

   • Z Cash
   • Decrypt

10. Sapling becomes the dominant shielded baseline

    Jan 1, 2021Labels: Sapling baseline

    • Z Cash
    • Zcash Proto

11. ECC proposes bringing Halo 2 to Zcash

    Jan 8, 2021Labels: Electric Coin, Halo 2

    • ECC

12. End state: Sapling-era upgrades set direction

    Dec 31, 2021Labels: Sapling era, Protocol roadmap

    • Z Cash
    • ECC