Hayabusa Hardfork

Testnet Hardfork: Block 23,221,800 ~ Tue, 4 Nov 2025 11:39:30 UTC
Mainnet Hardfork: Block 23,414,400 ~ Tue, 02 Dec 2025 11:27:00 UTC

What’s Changed

Hayabusa marks the beginning of VeChain’s Delegated Proof of Stake (DPoS) era expanding participation, aligning incentives, and setting the stage for scalable community governance.

Named after the pioneering Japanese spacecraft, Hayabusa symbolizes precision, endurance, and innovation reflecting VeChain’s leap toward broader decentralization and network sustainability.

What's Changed

• Delegated Proof of Stake (DPoS) (VIP-253) transforms the consensus model, allowing VET holders to stake or delegate and directly participate in network security.
• Dynamic VTHO Tokenomics (VIP-254) replaces static VTHO generation with staking-based block rewards that adapt to network activity and staked supply.
• Validator Lifecycle Overhaul staking, delegating, renewal, exit, and withdrawal are all managed via the new Staker contract.
• Stake-Weighted Finality blocks finalize based on validator weight, improving resilience and cryptoeconomic security.
• Performance & Stability significant optimization to gas usage, storage writes, and housekeeping efficiency.
• Developer Readiness improved error context, new admin APIs, enhanced Solo/Testnet tooling, and complete Devnet mirror.
• VTHO Issuance will stop at the above mentioned block heights and will reactivate as block rewards after the successful transition from PoA to DPoS.

Audit Reports

• Trail of Bits

Contributors

Huge thanks to everyone who brought Hayabusa to life:

• @darrenvechain
• @freemanzMrojo
• @libotony
• @moglu2017
• @nwbrettski
• @otherview
• @paologalligit
• @vanja-vechain
• @YeahNotSewerSide

Special shout-out to the engineering, QA, and research teams for the months of design, iteration, and validation behind Hayabusa - a massive step forward for VeChain’s evolution.

Full Changelog:
v2.3.2...v2.4.0