EIP

Ethereum Improvement Proposal. EIPs propose and describe changes made to Ethereum Protocol.

People wishing to submit EIPs first should propose their idea as an issue and then formalize it using a PR. After discussion it will be published here. Having an EIP here does not make it a formally accepted standard until its status becomes Active. For a EIP to become Active requires the mutual consent of the community. An EIP is not finalized until it has been implemented and is in use. Those proposing changes should consider that ultimately consent may rest with the consensus of the Ethereum users.

Contributing

First review EIP-1. Then clone the repository and add your EIP to it. There is a template EIP here. Then submit a Pull Request to Ethereum's EIPs repository.

Current EIPS

Number	Title	Author	Type	Layer	Status / Discussion
1	EIP Purpose and Guidelines	Martin Becze/Hudson Jameson	Meta		Active
2	Homestead Hard-fork Changes	Vitalik Buterin	Standard	homestead (hard-fork)	Accepted
3	Addition of CALLDEPTH opcode	Martin Holst Swende	Standard	Consensus (hard-fork)	Draft
4	EIP Classification	Joseph Chow	Meta		Draft
5	Gas Usage for RETURN and CALL*	Christian Reitwiessner	Standard	Consensus (hard-fork)	Draft
6	Renaming Suicide Variable	Hudson Jameson	Meta		Draft
7	DELEGATECALL	Vitalik Buterin	Standard	homestead (hard-fork)	Accepted
8	devp2p Forward Compatibility Requirements for Homestead	Felix Lange	Standard	Networking	Accepted
150	Gas cost changes for IO-heavy operations	Vitalik Buterin	Standard	Consensus (hard-fork)	Accepted
155	Simple replay attack protection	Vitalik Buterin	Standard	Consensus (hard-fork)	Accepted
160	EXP cost increase	Vitalik Buterin	Standard	Consensus (hard-fork)	Accepted
161	State trie clearing (invariant-preserving alternative)	Gavin Wood	Standard	Consensus (hard-fork)	Accepted
170	Contract code size limit	Vitalik Buterin	Standard	Consensus (hard-fork)	Accepted