# EIP

> Ethereum Improvement Proposal. The format used to suggest, debate, and document changes to Ethereum.

Canonical URL: https://fudfomo.co/glossary/eip
Source: What The Block! Dictionary v1.0 (last updated 2026-04-25), browsable at https://wtb.fudfomo.co.

## Definition

An EIP, or Ethereum Improvement Proposal, is the standard way of proposing changes to Ethereum. EIPs cover everything from major protocol upgrades to small token standards.

Each one goes through public discussion, technical review, and either acceptance or rejection. Famous examples include EIP-1559, which reshaped how gas fees work, and EIP-4844, which introduced cheaper data slots used by rollups.

## Related terms

- [Ethereum](https://fudfomo.co/glossary/ethereum): A blockchain that lets developers build apps and issue tokens. Often called a programmable money platform.
- [Hard Fork](https://fudfomo.co/glossary/hard-fork): A blockchain rule change that is not backwards compatible. Old software cannot follow the new chain.
- [Soft Fork](https://fudfomo.co/glossary/soft-fork): A blockchain rule change that is backwards compatible. Old software still works, just with fewer features.

## See the full catalogue

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