According to Foresight News, the oracle project Chainlink announced that Chainlink VRF (Verifiable Random Function) v2.5 has been officially launched on the Arbitrum, Avalanche, BNB Chain, Ethereum and Polygon mainnets. The new version provides a new way to programmatically pay for VRF on-chain randomness. For example, dApps can transfer the cost of VRF calls to end users when they request them, enabling fully autonomous dApps without the need for teams to maintain subscription contract balances. In addition, the v2.5 upgrade also introduces a new pricing model. Instead of charging a premium for static LINK, a premium is charged based on a percentage of the Gas cost associated with the VRF callback. The VRF smart contract now includes a new migration function that developers can call to upgrade their VRF integration to the next version, simplifying the upgrade process.