Lodestar
ChainSafe · TypeScript · LGPL-3.0 OR Apache-2.0
TypeScript consensus client; beacon node and validator.
consensusvalidatorEthereum MainnetHoodiSepoliaHoleskyEphemery
Required by network upgrades
| Upgrade | Network | Minimum |
|---|---|---|
| Glamsterdam | Sepolia | ≥ 1.49.0 |
| Fusaka | Ethereum Mainnet | ≥ 1.36.0 |
Releases
32 releases
Lodestarv1.51.0-rc.0
Oct 26, 2026
Lodestarv1.50.1
Why this rating
- high (all networks): This is a critical update and all users must upgrade.
- high (hoodi): It is mandatory for Hoodi operators before epoch 132352 (October 26, ~17:42 UTC).
- high (all networks): Your execution client must also run a release with the fork unscheduled, so check with your EL team.
- high (mainnet): Mainnet users should upgrade as soon as possible.
Oct 22, 2026
Lodestarv1.50.0
Why this rating
- high (hoodi); medium (mainnet): It is mandatory for Hoodi operators and recommended for mainnet users.
- high (hoodi): Hoodi operators must also upgrade their execution client to a Glamsterdam-ready release before the fork.
- fork scheduled (hoodi): - Hoodi Glamsterdam fork scheduled.
- performance wording: "- optimize builder flows (#10263) (@twoeths)"
Oct 12, 2026
Lodestarv1.50.0-rc.0
Why this rating
- performance wording: "- optimize builder flows (#10263) (@twoeths)"
Oct 9, 2026
Lodestarv1.49.0
Why this rating
- medium (mainnet): We've just released v1.49.0 and recommend upgrading for mainnet and testnet users.
- consensus-safety wording: "- reject slashing protection import of attestations from the future (#10170) (@nflaig)"
- fork readiness: "This release makes Lodestar ready for the Glamsterdam fork on Sepolia."
- performance wording: "- specify optimistic search for payload in NetworkProcessor (#10123) (@twoeths)"
Sep 28, 2026
Lodestarv1.49.0-rc.0
Why this rating
- consensus-safety wording: "- reject slashing protection import of attestations from the future (#10170) (@nflaig)"
- performance wording: "- specify optimistic search for payload in NetworkProcessor (#10123) (@twoeths)"
Sep 25, 2026
Lodestarv1.48.0
Why this rating
- medium (mainnet): We've just released v1.48.0, a strongly recommended upgrade for mainnet and testnet users.
Sep 15, 2026
Lodestarv1.48.0-rc.0
Sep 12, 2026
Lodestarv1.47.0
Why this rating
- fork readiness: "This is on top of all the work we've done to get ready for Glamsterdam."
- performance wording: "We are super proud to bring the first of many Zig releases to you as you will definitely notice performance benefits."
Sep 2, 2026
Lodestarv1.47.0-rc.0
Aug 27, 2026
Lodestarv1.46.0
Why this rating
- medium (mainnet): We've just released v1.46.0, a recommended upgrade for all mainnet and testnet users.
- performance wording: "This release focuses on shutdown/restart stability, safer validator behavior while optimistic, and continued Gloas/Heze development for the upcoming forks and devnets."
Aug 12, 2026
Lodestarv1.46.0-rc.1
Why this rating
- performance wording: "- do not produce blocks on top of an optimistic head (#9779) (@nflaig)"
Aug 9, 2026
Lodestarv1.46.0-rc.0
Why this rating
- performance wording: "- do not produce blocks on top of an optimistic head (#9779) (@nflaig)"
Aug 7, 2026
Lodestarv1.45.0
Why this rating
- medium (all networks): We've just released v1.45.0, a highly recommended upgrade for all users.
- security wording: "There are a couple of important security fixes that are important to mitigate."
Jul 27, 2026
Lodestarv1.45.0-rc.0
Jul 17, 2026
Lodestarv1.44.0
Why this rating
- breaking wording: "Breaking Change: The deprecated v1 block-publishing and attestation-submission beacon API endpoints have been removed (#9531, #9532)."
- deprecation wording: "Breaking Change: The deprecated v1 block-publishing and attestation-submission beacon API endpoints have been removed (#9531, #9532)."
- performance wording: "We also made some incremental performance improvements and updated our APIs."
Jul 1, 2026
Lodestarv1.44.0-rc.3
Jun 30, 2026
Lodestarv1.44.0-rc.2
Jun 25, 2026
Lodestarv1.44.0-rc.1
Jun 17, 2026
Lodestarv1.44.0-rc.0
Jun 9, 2026
Lodestarv1.43.0
Why this rating
- high (all networks): There will be no action required for operators running via Docker, however if you are building from source you will need to update your version of pnpm.
- performance wording: "We've just released v1.43.0 and recommend users upgrade for the latest features and best performance."
May 20, 2026
Lodestarv1.43.0-rc.5
May 13, 2026
Lodestarv1.43.0-rc.2
May 11, 2026
Lodestarv1.43.0-rc.1
May 8, 2026
Lodestarv1.42.0
Why this rating
- performance wording: "We've just released v1.42.0 and recommend users upgrade for the latest features and best performance."
Apr 13, 2026
Lodestarv1.42.0-rc.0
Apr 3, 2026
Lodestarv1.41.1
Why this rating
- high (mainnet): We've released v1.41.1, a mandatory hotfix to schedule the Fulu fork on Gnosis mainnet.
- hotfix wording: "We've released v1.41.1, a mandatory hotfix to schedule the Fulu fork on Gnosis mainnet."
Apr 1, 2026
Lodestarv1.41.0
Why this rating
- high (all networks): It is critical to note that you will need to update your existing firewall rules and other infrastructure bits and pieces to allow UDP on port 9001.
- performance wording: "We've just released v1.41.0 and recommend users upgrade for the latest features and best performance."
Mar 19, 2026
Lodestarv1.41.0-rc.2
Mar 17, 2026
Lodestarv1.41.0-rc.0
Mar 14, 2026
Lodestarv1.40.0
Why this rating
- breaking wording: "Breaking change: Node.js v22 is no longer supported."
- deprecation wording: "- fix fastify deprecation warning about querystringParser (#8876) (@nflaig)"
- performance wording: "We're excited to release v1.40.0 and recommend users upgrade for the latest features and best performance."
Feb 11, 2026
Lodestarv1.40.0-rc.3
Why this rating
- deprecation wording: "- fix fastify deprecation warning about querystringParser (#8876) (@nflaig)"
- performance wording: "- optimize byteArrayEquals with hybrid loop/Buffer.compare (#8846) (@lodekeeper)"
Feb 11, 2026