The VeChainThor blockchain is preparing for a major network upgrade on Sept. 16, 2026, with the Interstellar hardfork scheduled to activate at block height 25,902,540. The upgrade is centered on VeChain Improvement Proposal 255, or VIP-255, and is designed to expand the capabilities of the network’s virtual machine while bringing parts of its transaction environment closer to Ethereum-compatible standards.
The transition is expected to be closely watched by VET holders, developers, and node operators because it represents a significant technical change without requiring token migration or changes to existing contract addresses.
VIP-255 Targets Greater Ethereum Compatibility
VIP-255 introduces a series of changes intended to improve the functionality and interoperability of VeChainThor. The proposal incorporates selected Ethereum Improvement Proposals, giving developers a more familiar technical environment and potentially making it easier to build and operate decentralized applications on the network.
The primary objective of the Interstellar upgrade is to strengthen VeChainThor’s virtual machine and improve compatibility with Ethereum-oriented transaction standards, potentially expanding the network’s usefulness for decentralized applications and developers.
One of the key features of the upgrade is that VET holders are not expected to move their tokens or modify contract addresses as part of the transition. This is intended to reduce operational complexity and limit disruption for users and applications already operating on VeChainThor.
The approach also reflects an effort to combine technical modernization with network continuity. Rather than requiring widespread changes to token holdings or contract infrastructure, the upgrade is structured to preserve existing assets while introducing new technical capabilities.
Node Operators Face Critical Upgrade Deadline
While VET holders are not expected to make major technical changes, node operators have a more immediate responsibility. They will need to upgrade their infrastructure to Thor v2.5.0 before the hardfork becomes active.
The software update is important because nodes must operate with compatible rules after the network reaches the activation block. Operators that fail to update could face transaction-processing problems, delays, or other operational issues once the new protocol rules take effect.
The requirement for node operators to move to Thor v2.5.0 highlights the importance of software readiness in maintaining consensus and uninterrupted network operations during a blockchain hardfork.
Operators are therefore expected to monitor their node versions and complete the update ahead of the scheduled activation. The process illustrates how protocol upgrades can affect different participants differently, with ordinary token holders facing limited action while infrastructure providers carry greater technical responsibilities.
Exchanges Prepare for Temporary Transfer Restrictions
The upgrade is also expected to affect VET transfers through centralized exchanges. Major platforms, including Binance, are expected to temporarily suspend VET deposits and withdrawals around the hardfork to manage the transition and protect users from potential network inconsistencies.
VET holders may therefore benefit from completing necessary transfers by Sept. 15 or early on Sept. 16. Trading activity can continue according to individual exchange policies, but deposit and withdrawal functionality may be unavailable during the suspension period.
The temporary restrictions are not expected to alter the underlying status of VET. The token supply is set to remain unchanged, while VTHO generation is also expected to continue under the existing framework following the upgrade.
Broader Implications for VeChain Ecosystem
Beyond the immediate technical changes, the Interstellar upgrade could influence how businesses and developers approach VeChainThor. Greater alignment with Ethereum-based standards may reduce technical barriers for developers familiar with Ethereum tooling and transaction frameworks.
The upgrade also comes as blockchain companies increasingly assess interoperability, liquidity management, and compliance requirements. For Web3 businesses, protocol changes can affect infrastructure planning, application compatibility and operational processes.
The Sept. 16 activation will therefore represent more than a routine software update. It will test the ability of network participants to coordinate infrastructure changes while maintaining continuity for users and applications.
For VET holders, the main priority is understanding exchange restrictions and planning transfers before the temporary suspension. For developers and node operators, ensuring software compatibility ahead of the activation block will be more important.
With the Interstellar hardfork approaching, VeChainThor is positioning the network for greater technical compatibility while seeking to minimize disruption for existing users. The success of the transition will depend heavily on timely preparation across the ecosystem and effective coordination between infrastructure providers, exchanges, developers, and token holders.
