Last week, NEO developers upgraded their network’s mainnet consensus nodes, including the core consensus protocol. The updated delegated Byzantine Fault Tolerance (dBFT) consensus mechanism is designed to provide strict one-block finality, a challenge both in terms of technical specification and research.
The new features are expected to reduce the need for network maintenance and downtime, as well as their impact on the running processes of decentralized applications.
These instability issues may have delayed or prevented NEP-5 tokens from being listed on individual exchanges. Guardian Circle which utilizes a NEP-5 token for their decentralized emergency response service, is a possible case in point.