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Anchor

beta
Sigma Prime · Rust · Apache-2.0

Rust implementation of the SSV protocol by the Lighthouse team.

dvtEthereum MainnetHoodi
sigp/anchorDocs

Releases

Rated by the lighthouse-table rules · weight 1.3
Channel
Severity
Type
Network
Fork
17 releases
Anchorv1.3.2
Why this rating
  • medium (mainnet): Operators running mainnet validators | Medium
  • medium (all networks); medium (mainnet): This medium-priority release contains fixes for security vulnerabilities and is recommended for all mainnet operators.
  • security wording: "This medium-priority release contains fixes for security vulnerabilities and is recommended for all mainnet operators."
  • Security: This section will be updated with security advisories as they are made public. We are not disclosing the security content of this release in order to give oper…
  • low (all networks): Testnet / non-validating | Low
Oct 1, 2026
Anchorv1.3.1
Why this rating
  • high (mainnet): Operators running mainnet validators | High
  • high (all networks): Caravel > [!WARNING] > Anchor v1.3.1 is a high-priority security release.
  • medium (all networks): Testnet / non-validating | Medium
  • medium (all networks): All operators should upgrade > as soon as practical.
  • security wording: "Caravel > [!WARNING] > Anchor v1.3.1 is a high-priority security release."
Aug 19, 2026
Anchorv1.3.0
Why this rating
  • high (all networks): ### Fixes ⚠️ Anchor v1.3.0 is a high-priority release carrying security-critical fixes atop v1.2.4.
  • high (all networks): This is a mandatory upgrade for all users running any prior version.
  • high (all networks): All Anchor nodes should be upgraded as soon as possible.
  • security wording: "### Fixes ⚠️ Anchor v1.3.0 is a high-priority release carrying security-critical fixes atop v1.2.4."
  • changelog entry: "- chore(deps): update alloy to 1.2.1 and fix ruint security vulnerability (#766)"
Jul 21, 2026
Anchorv1.2.4
Why this rating
  • high (all networks): Anchor v1.2.4 is a high-priority patch release with further security-critical fixes atop v1.2.3.
  • high (all networks): This is a mandatory upgrade for all users running any prior version.
  • high (all networks): All Anchor nodes should be upgraded as soon as possible.
  • security wording: "Anchor v1.2.4 is a high-priority patch release with further security-critical fixes atop v1.2.3."
  • deprecation wording: "- ci: bump Node20-deprecated actions in stable-loaded workflows (Phase 1 of #1040) (#1042)"
Jun 22, 2026
Anchorv1.2.3
Why this rating
  • high (all networks): Anchor v1.2.3 is a high-priority patch release with further security-critical fixes atop v1.2.2.
  • high (all networks): This is a mandatory upgrade for all users running any prior version.
  • high (all networks): All Anchor nodes should be upgraded as soon as possible.
  • security wording: "Anchor v1.2.3 is a high-priority patch release with further security-critical fixes atop v1.2.2."
Mar 26, 2026
Anchorv1.2.2
Why this rating
  • high (all networks): Anchor v1.2.2 is a high-priority patch release with further security-critical fixes atop v1.2.1.
  • high (all networks): This is a mandatory upgrade for all users running any prior version.
  • high (all networks): All Anchor nodes should be upgraded as soon as possible.
  • security wording: "Anchor v1.2.2 is a high-priority patch release with further security-critical fixes atop v1.2.1."
Mar 9, 2026
Anchorv1.2.1
Why this rating
  • high (all networks): This is a mandatory upgrade for all users running any prior versions.
  • high (all networks): Users should upgrade as soon as possible.
  • security wording: "Anchor v1.2.1 is a patch release that includes an important security fix."
Feb 27, 2026
Anchorv1.2.0
Why this rating
  • consensus-safety wording: "This should be avoided as it can cause missed duties and, if there are multiple Doppelganger operators in a committee, slashing."
  • performance wording: "However some users observed significantly reduced validator performance."
Dec 18, 2025
Anchorv1.1.0
Why this rating
  • high (mainnet): Upgrading to v1.1.0 is mandatory for all mainnet users prior to the Fulu fork at epoch 411,392 (2025-12-03, 21:49 UTC).
  • fork scheduled (mainnet): Upgrading to v1.1.0 is mandatory for all mainnet users prior to the Fulu fork at epoch 411,392 (2025-12-03, 21:49 UTC).
  • consensus-safety wording: "With Fusaka, maximum blob count will increase, further raising the amount of data to be sent and therefore raising the risk of missed proposals."
Nov 11, 2025
Anchorv1.1.0-rc.0
Why this rating
  • high (all networks): Users must upgrade to this version to be able to continue performing duties after the Fusaka fork is triggered:
  • consensus-safety wording: "With Fusaka, maximum blob count will increase, further raising the amount of data to be sent and therefore raising the risk of missed proposals."
Oct 24, 2025
Anchorv1.0.0
Why this rating
  • fork scheduled (hoodi): - On Hoodi, Anchor will log "Beacon node has mismatched Fulu fork epoch".
  • security wording: "- chore: update alloy-dyn-abi to address CVE-2025-62370 (#691)"
  • breaking wording: "If you are already running an Anchor pre-release on Hoodi, there is a small breaking change."
Oct 20, 2025
Anchorv1.0.0-rc.1
Why this rating
  • fork scheduled (hoodi): - On Hoodi, Anchor will log "Beacon node has mismatched Fulu fork epoch".
Oct 13, 2025
Anchorv1.0.0-rc.0
Sep 19, 2025
Anchorv0.3.1
Why this rating
  • breaking wording: "Please carefully read the details below if you want to migrate your existing Anchor instance to v0.3.X, as this release contains breaking changes."
  • hotfix wording: "Lighthouse Tender v0.3.1 is a hotfix for the peering issues introduced in Anchor v0.3.0."
  • deprecation wording: "Anchor v0.2.0 deprecated that format and converted existing keys to the format used by Go-SSV."
Aug 19, 2025
Anchorv0.3.0
Why this rating
  • breaking wording: "Please carefully read the details below if you want to migrate your existing Anchor instance to v0.3.0, as this release contains breaking changes."
  • hotfix wording: "Please use the hotfix instead"
  • deprecation wording: "Anchor v0.2.0 deprecated that format and converted existing keys to the format used by Go-SSV."
Aug 15, 2025
Anchorv0.2.0
Why this rating
  • breaking wording: "Please carefully read the details below if you want to migrate your Anchor v0.1.0 instance to v0.2.0, as this release contains breaking changes."
  • performance wording: "- Reduce memory usage in validator (#379)"
Jul 10, 2025
Anchorv0.1.0
Jun 3, 2025