Mainnet Release v4.0.0
This is a major release of the Harmony protocol software.
It is a mandatory upgrade.
The upgrade will require a hard fork of the protocol at Epoch 530, which is around 4/13/2021 2 pm UTC.
All validators have to upgrade the nodes before Epoch 530.
Major changes included in this release.
- lower the voting power of internal nodes from 68% to 60%. Harmony internal nodes are no longer the majority of the protocol.
- increase external validator slots from 640 to 800. This will likely lower the EMS (effective median stake) of the protocol from ~6M to ~5M.
- fix a loophole of early undelegation.
- streaming-based state syncing rollout phase 1 to enable server-side support.
- various bug view change bug fixes.
- consensus and verification optimizations.
- graph protocol support in explorer node.
The released version: v4.0.0-0-g78759217