Mandatory relaunch update. This is a coordinated hard-fork release. Every node and miner must run v1.5.1 (miner v0.5.0) before the activation point below, or it will fork off the network.
Highlights
- Proof-of-Model v4 — the block-verification path now independently re-derives each mining proof instead of trusting a submitted final state. Node and miner move in lockstep; both must be v1.5.1 / v0.5.0.
- Faster initial sync — reworked block-level handling removes the slowdown that made IBD degenerate at low difficulty. Fresh syncs are substantially quicker.
- Reward routing update — reward attribution rules move to their v4 form at the activation height.
- Peer version floor — nodes now require peers to advertise v1.5.1 or newer, keeping the relaunch network free of stale binaries.