Neo X TestNet is rolling out a major upgrade, scheduled to take effect on June 23, 2025.

Version 0.4.0 introduces a preview of ZK-based DKG verification added to the KeyManagement system contract, along with support for ZK-based DKG execution at the dBFT level. This feature will be automatically enabled once the KeyManagement contract is upgraded by network maintainers, following a necessary audit.

Note: This feature is still under development and may undergo further refinement in future releases.

This version also includes a new  NeoXEthSig fork, which adopts a canonical format for TPKE block signatures. Additionally, it brings a series of optimizations and fixes related to anti-MEV mechanisms and dBFT performance.

Compatibility

Fully compatible with TestNet v0.3.2 and MainNet v0.2.2. 

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New Features

• EthereumPoS-compatible block signature support

• ZK-based DKG verification in KeyManagement contract

• ZK-based DKG execution support in dBFT
  
  

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Behavior Changes

• Rename txpool.signaturecache CLI flag to txpool.amevcache

• Rename eth_getEncryptedTransaction RPC API to eth_getCachedTransaction

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Improvements

• Refactored anti-MEV cache pool implementation

• Refactored anti-MEV verification pool in dBFT

• Optimized dBFT execution with anti-MEV enabled

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Bug Fixes

• Fixed panic in anti-MEV cache pool when removing expired transactions

• Fixed incorrect DKG synchronization with miner interruption

• Resolved panic during dBFT payload processing on miner shutdown

• Corrected non-canonical TPKE block signature format

• Fixed panic during PreBlock verification in dBFT

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