Upgrading Ethereum

A technical handbook on Ethereum's move to proof of stake and beyond

Aka "The Eth2 Book".

This is a work in progress. It is not a small project, and will take some time to complete. I appreciate your patience.

Editions

• Edition 0.2: Bellatrix [WIP]
  • The Bellatrix edition describes the currently active Eth2 specification. It remains work in progress, and there is much yet to be done.
• Edition 0.1: Altair
  • The Altair edition is now frozen as-is and is for historical interest only.
• My original Phase 0 Annotated Specification remains available elsewhere for historical interest.

The latest version is always at https://eth2book.info/latest. It currently points to the Bellatrix edition.

The source material is available on GitHub.

Coffee

Kind souls sometimes ask for a way to send me a cup of coffee or make a donation. My account info is below - donations are absolutely not expected or necessary, but are always very encouraging and gratefully received.

• 0xd262d146e869915444d0f34ecdaabab5ab43007e on Ethereum, ZkSync, Polygon, Optimism, Arbitrum.
• Also at benjaminion.eth

Any whales or large treasuries out there, I encourage you to take a look at the Protocol Guild which supports the people developing and maintaining our incredible technology, not just writing about it.