Consensus specs
Ethereum Foundation · Python · CC0-1.0
Beacon chain specifications. Tagged releases mark fork spec freezes (alpha/beta/rc).
spec
Releases
30 releases
Consensus specsv1.7.0-beta.4
Oct 8, 2026
Consensus specsv1.7.0-beta.3
Oct 5, 2026
Consensus specsv1.7.0-beta.2
Sep 23, 2026
Consensus specsv1.7.0-beta.1
Sep 22, 2026
Consensus specsv1.7.0-beta.0
Sep 3, 2026
Consensus specsv1.7.0-alpha.14
Why this rating
- performance wording: "- Integrate optimistic sync specs into core specs (#5529)"
Aug 19, 2026
Consensus specsv1.7.0-alpha.13
Why this rating
- performance wording: "- Add a subsection for IL satisfaction in optimistic.md (#5458)"
Jul 31, 2026
Consensus specsv1.7.0-alpha.12
Jul 8, 2026
Consensus specsv1.7.0-alpha.11
Jun 19, 2026
Consensus specsv1.7.0-alpha.10
Jun 3, 2026
Consensus specsv1.7.0-alpha.9
Why this rating
- consensus-safety wording: "- Fix invalid block-root membership check in fork-choice helper (#5259)"
- deprecation wording: "- Remove support for old deposit mechanism in Fulu (#4704)"
Jun 2, 2026
Consensus specsv1.7.0-alpha.8
Why this rating
- performance wording: "- Optimize strategy for onboarding builders at the fork (#5254)"
May 15, 2026
Consensus specsv1.7.0-alpha.7
Apr 29, 2026
Consensus specsv1.7.0-alpha.6
Why this rating
- deprecation wording: "- Define deprecated containers (#5142)"
Apr 29, 2026
Consensus specsv1.7.0-alpha.5
Why this rating
- deprecation wording: "- Define deprecated functions (#5105)"
- performance wording: "- Improve performance of compute_balance_weighted_selection (#5079)"
Apr 19, 2026
Consensus specsv1.7.0-alpha.4
Mar 27, 2026
Consensus specsv1.7.0-alpha.3
Mar 13, 2026
Consensus specsv1.7.0-alpha.2
Feb 3, 2026
Consensus specsv1.7.0-alpha.1
Jan 10, 2026
Consensus specsv1.7.0-alpha.0
Why this rating
- deprecation wording: "- Remove deprecated INTERVALS_PER_SLOT constant (#4805)"
Jan 6, 2026
Consensus specsv1.6.1
Nov 15, 2025
Consensus specsv1.6.0
Oct 31, 2025
Consensus specsv1.6.0-beta.2
Why this rating
- deprecation wording: "- Delete deprecated specifications (#4680)"
- performance wording: "- Optimized sync committee signature verification (#4687)"
Oct 30, 2025
Consensus specsv1.6.0-beta.1
Why this rating
- fork readiness: "- Add initial fuzzing support to fork choice compliance test generator (#4614)"
Oct 22, 2025
Consensus specsv1.6.0-beta.0
Sep 24, 2025
Consensus specsv1.6.0-alpha.6
Aug 30, 2025
Consensus specsv1.6.0-alpha.5
Aug 21, 2025
Consensus specsv1.6.0-alpha.4
Why this rating
- performance wording: "- Make test_full_attestations_one_validator_one_gwei faster (#4462)"
Aug 7, 2025
Consensus specsv1.6.0-alpha.3
Jul 2, 2025
Consensus specsv1.6.0-alpha.2
Jun 12, 2025