Upgrade Kusama System to the v2.0.4 release

This is a major runtime upgrade that contains the full release of Revive, a smart contract platform that can execute PVM and EVM contracts which are fully interoperable. Solidity contracts can be deployed unchanged, and developers can keep using familiar Ethereum tooling, such as Foundry and Hardhat.

🚧 Important note for Ecosystem builders: 🚧

This release introduces Elastic Scaling on Kusama Hub to allow higher throughput and prepare the chain for shorter block times. The switch from a 6-second to a 2-second block time will be enabled shortly after enactment.

You can find more details about this change here.

The projected enactment date for this runtime upgrade is 29th December 2025.

Many thanks.

A big update called Revive is coming to a blockchain network.
It lets people use smart contracts, which are like tiny computer programs.
Developers can use the same tools they already know from Ethereum.
The network is getting faster by changing how it handles more activity.
Block times (how fast new data is added) will soon be much quicker.
This update is planned to start on December 29th, 2025.
It helps the network do more things at once.

Source

This is a major runtime upgrade that contains the full release of Revive, a smart contract platform that can execute PVM and EVM contracts which are fully interoperable. Solidity contracts can be deployed unchanged, and developers can keep using familiar Ethereum tooling, such as Foundry and Hardhat.

🚧 Important note for Ecosystem builders: 🚧

This release introduces Elastic Scaling on Kusama Hub to allow higher throughput and prepare the chain for shorter block times. The switch from a 6-second to a 2-second block time will be enabled shortly after enactment.

You can find more details about this change here.

The projected enactment date for this runtime upgrade is 29th December 2025.

Many thanks.