Avalanche is a network composed of multiple blockchains. Each blockchain is an instance of a Virtual Machine (VM), much like an object in an object-oriented language is an instance of a class. That is, the VM defines the behavior of the blockchain.
Subnet EVM is the Virtual Machine (VM) that defines the Subnet Contract Chains. Subnet EVM is a simplified version of Coreth VM (C-Chain).
This chain implements the Ethereum Virtual Machine and supports Solidity smart contracts as well as most other Ethereum client functionality.
The Subnet EVM runs in a separate process from the main AvalancheGo process and communicates with it over a local gRPC connection.
The Subnet EVM supports the following API namespaces:
ethpersonaltxpooldebug
Only the eth namespace is enabled by default.
Full documentation for the C-Chain's API can be found here.
The Subnet EVM is compatible with almost all Ethereum tooling, including Remix, Metamask and Truffle.
- Added configurable fees and gas limits in genesis
- Merged Avalanche hardforks into the single "Subnet EVM" hardfork
- Removed Atomic Txs and Shared Memory
- Removed Multicoin Contract and State
- Removed DAO Hardfork Support