A pseudonymous VeChain core developer identified on Twitter as Bin has on 14th May 2021 announced the release of VeChainThor version 1.5.0.
According to the report, the latest version will activate a hard fork named ETH_IST, in order to maintain compatibility with the latest Ethereum virtual machine (EVM).
Bin tweeted, “VeChain thor v1.5.0 is out, which will activate the ETH_IST hard-fork in order to maintain compatibility with the latest Ethereum virtual machine.”
VeChain thor v1.5.0 is out, which will activate the ETH_IST hard-fork in order to maintain compatibility with the latest Ethereum virtual machine.
— Bin (@cola_tin) May 14, 2021
Another supposed VeChain developer also described the new version of VeChainThor as follows:
“VeChain Thor 1.5 has been released this weekend. This includes a hard fork to support ethereum Berlin compatibility. This fork will be active on testnet starting 2021-05-20! So go update your nodes if necessary!”
Going by the details of the newly released version on Github, all nodes are required to be upgraded as soon as possible.
The hard fork ETH_IST activation time:
- Testnet: at block # 9146700 ~ Thu, 20 May 2021 08:00:00 GMT
- Mainnet: at block # 9254300 ~ Mon, 07 Jun 2021 08:00:00 GMT
Changes in the new version can be found below:
- add blake2F precompiled contract
- add OP_CHAINID & OP_SELFBALANCE opcodes
- fix ecrecover precompiled contract to not modify input data
- use BIP39 mnemonic for solo accounts
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