According to official news, Neo has released the Neo X Gamma version of the testnet. This version introduces a policy-based transaction fee burning mechanism, replacing the dynamically evaluated base rate of EIP-1559. This version also includes compatible protocol extensions, enhanced system contract functions, cross-chain bridge improvements, and document updates. In addition, after a security audit, this version also made enhancements and stability fixes to the system contract and dBFT protocol. This version of the Neo X node is based on v1.13.11 Geth and supports the Shanghai fork as the latest Ethereum compatible fork. Neo X plans to use the Gamma version to become a long-term TestNet.