hopinheimer 99fb99c941 Fix transient bug in dequeue_attestation and optimization (#9524)
`dequeue_attestations` released votes by splitting the queue at the first entry with `slot >= current_slot`, which assumes the queue is sorted by slot. It isn't: `on_attestation` pushes attestations in arrival order and never sorts. When a future-slot vote sits ahead of a vote that is already due, the split happens at the future-slot vote and the due vote stays stuck behind it and is never applied to fork choice, even after its slot is in the past.


  The PR current uses a naive solution to solve the bug and also adds regression tests to exercise the bug. There are other competing solutions which can be used which also optimize this path at the same time.

https://github.com/sigp/lighthouse/pull/8378

https://github.com/sigp/lighthouse/pull/8378#discussion_r2543322106


Co-Authored-By: hopinheimer <knmanas6@gmail.com>

Co-Authored-By: hopinheimer <48147533+hopinheimer@users.noreply.github.com>

Co-Authored-By: Michael Sproul <michael@sigmaprime.io>
2026-06-25 02:53:38 +00:00
2026-06-12 19:36:47 +00:00
2026-05-05 06:35:57 +00:00
2026-03-31 05:07:22 +00:00
2026-06-23 00:06:26 +00:00
2026-06-22 19:52:53 +10:00
2026-06-10 01:41:26 +00:00

Lighthouse: Ethereum consensus client

An open-source Ethereum consensus client, written in Rust and maintained by Sigma Prime.

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Overview

Lighthouse is:

  • Ready for use on Ethereum consensus mainnet.
  • Fully open-source, licensed under Apache 2.0.
  • Security-focused. Fuzzing techniques have been continuously applied and several external security reviews have been performed.
  • Built in Rust, a modern language providing unique safety guarantees and excellent performance (comparable to C++).
  • Funded by various organisations, including Sigma Prime, the Ethereum Foundation, Consensys, the Decentralization Foundation and private individuals.
  • Actively involved in the specification and security analysis of the Ethereum proof-of-stake consensus specification.

Staking Deposit Contract

The Lighthouse team acknowledges 0x00000000219ab540356cBB839Cbe05303d7705Fa as the canonical staking deposit contract address.

Documentation

The Lighthouse Book contains information for users and developers.

The Lighthouse team maintains a blog at https://blog.sigmaprime.io/tag/lighthouse which contains periodic progress updates, roadmap insights and interesting findings.

Branches

Lighthouse maintains two permanent branches:

  • stable: Always points to the latest stable release.
    • This is ideal for most users.
  • unstable: Used for development, contains the latest PRs.
    • Developers should base their PRs on this branch.

Contributing

Lighthouse welcomes contributors.

If you are looking to contribute, please head to the Contributing section of the Lighthouse book.

Contact

The best place for discussion is the Lighthouse Discord server.

Sign up to the Lighthouse Development Updates mailing list for email notifications about releases, network status and other important information.

Encrypt sensitive messages using our PGP key.

Donations

Lighthouse is an open-source project and a public good. Funding public goods is hard and we're grateful for the donations we receive from the community via:

  • Gitcoin Grants.
  • Ethereum address: 0x25c4a76E7d118705e7Ea2e9b7d8C59930d8aCD3b (donation.sigmaprime.eth).
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Readme Apache-2.0 281 MiB
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