NU 6.1 Support

NozyWallet is fully compatible with Zcash Network Upgrade 6.1 (NU 6.1).

What is NU 6.1?

Network Upgrade 6.1 is the latest Zcash network upgrade that brings:

  • Protocol Version 170140 - Latest protocol features
  • Activation Height - Block 3,146,400 (November 23, 2025)
  • New Features - ZIP 271, ZIP 1016 support
  • Performance Improvements - Better efficiency and scalability

NozyWallet Compatibility

✅ Fully Compatible - NozyWallet is ready for NU 6.1:

  • Protocol version 170140 support
  • Latest libraries (zcash_protocol 0.6.2+, zcash_primitives 0.24.1+)
  • All NU 6.1 features supported
  • Automatic upgrade handling

Checking NU 6.1 Status

CLI

Check NU 6.1 status:

nozy nu61

Or check wallet status:

nozy status

Example output:

✅ NU 6.1 Support: Enabled
Protocol Version: 170140
Activation Height: 3,146,400
Current Height: 3,147,200
Status: Active

What Changed?

For Users

No action required - NozyWallet automatically:

  • ✅ Uses latest protocol version
  • ✅ Supports new features
  • ✅ Handles upgrade seamlessly
  • ✅ Maintains compatibility

Benefits:

  • Better performance
  • Improved privacy
  • Enhanced features
  • Future-proof wallet

For Developers

Technical changes:

  • Updated protocol version
  • New ZIP support
  • Enhanced libraries
  • Improved APIs

Upgrade Timeline

Before Activation (Block < 3,146,400)

  • Wallet uses pre-NU 6.1 protocol
  • All features work normally
  • Upgrade preparation in place

After Activation (Block >= 3,146,400)

  • Wallet automatically uses NU 6.1
  • New features activated
  • Full compatibility maintained

Current Status

Check current status:

nozy nu61

This shows:

  • Current block height
  • Activation status
  • Protocol version in use

Features Enabled

ZIP 271 Support

ZIP 271 brings:

  • Enhanced transaction formats
  • Better compatibility
  • Improved privacy features

ZIP 1016 Support

ZIP 1016 enables:

  • New transaction types
  • Enhanced functionality
  • Better interoperability

Migration Guide

For Existing Wallets

No migration needed - Existing wallets work automatically:

  • ✅ Old wallets compatible
  • ✅ Automatic upgrade
  • ✅ No manual steps required
  • ✅ All features available

For New Wallets

Standard creation process - New wallets use NU 6.1 by default:

  • ✅ Latest protocol from start
  • ✅ All features enabled
  • ✅ Future-proof setup

Troubleshooting

"Protocol version mismatch" Error

Problem: Wallet and node use different protocol versions.

Solutions:

  1. Update NozyWallet - Ensure latest version
  2. Update Zebra node - Ensure node supports NU 6.1
  3. Check network - Verify mainnet/testnet matches
  4. Sync wallet - Run sync to update

"NU 6.1 not active" Warning

Problem: Network upgrade hasn't activated yet.

Solutions:

  • Wait for activation height (block 3,146,400)
  • Check current block height
  • Verify activation date (November 23, 2025)

Learn More