v1.10.3

v1.10.3 - 2026-06-24

This is recommended patch release of Charon v1.10.3. This patch fixes proposer duties fetching in Lighthouse VC v8.2.0 and improves fetch_att_on_block feature flag. It also includes couple of dependency bumps. Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.10.2..v1.10.3

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.4.0	Lighthouse v8.1.3	Lodestar v1.42.0	Nimbus v26.3.1	Prysm v7.1.3	Vouch v1.12.1 ❗
Teku v26.4.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.3	✅	✅	✅	✅	✅	🟡
Lodestar v1.42.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.3.1	✅	✅	✅	✅	✅	🟡
Prysm v7.1.3	✅	✅	✅	✅	✅	🟡
Grandine v2.0.4	✅	✅	✅	✅	✅	🟡

What's Changed

• app: bump patch version to v1.10-rc (#4565)

• *: v1.10.3-rc1 (#4567)

• app/version: bump v1.10 to stable (#4569)

v1.10.2

v1.10.2 - 2026-06-10

This is highly recommended patch release of Charon v1.10.2. This patch has numerous security and performance fixes. Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.10.1..v1.10.2

Bugfix

• Fix memory leak of prometheus metrics, growing cardinality uncontrollably #4553
• Do not store expired duties in ParSigDB; rework deadliner #4552
• Fix key in the KV in-memory storage of aggregation duties in DutyDB #4544
• Fix charon exit fetch signature aggregation #4542

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.4.0	Lighthouse v8.1.3	Lodestar v1.42.0	Nimbus v26.3.1	Prysm v7.1.3	Vouch v1.12.1 ❗
Teku v26.4.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.3	✅	✅	✅	✅	✅	🟡
Lodestar v1.42.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.3.1	✅	✅	✅	✅	✅	🟡
Prysm v7.1.3	✅	✅	✅	✅	✅	🟡
Grandine v2.0.4	✅	✅	✅	✅	✅	🟡

What's Changed

• app: bump patch version to v1.10-rc (#4548)

• *: v1.10.2-rc1 (#4549)

• *: cherry-picks for v1.10.2-rc2 (#4555)

• app/version: bump v1.10 to stable (#4556)

v1.10.1

v1.10.1 - 2026-05-20

This is highly recommended patch release of Charon v1.10.1. This patch fixes an issue with Charon node panic-ing on unknown payload from another Charon node. There is also a fix of deposit fetch command that failed to verify signature in certain cases. Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.10.0..v1.10.1

Bugfix

• Fix panic on unknown unsigned data #4529
• Fix deposit fetch #4526

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.4.0	Lighthouse v8.1.3	Lodestar v1.42.0	Nimbus v26.3.1	Prysm v7.1.3	Vouch v1.12.1 ❗
Teku v26.4.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.3	✅	✅	✅	✅	✅	🟡
Lodestar v1.42.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.3.1	✅	✅	✅	✅	✅	🟡
Prysm v7.1.3	✅	✅	✅	✅	✅	🟡
Grandine v2.0.4	✅	✅	✅	✅	✅	🟡

What's Changed

• Cherry-pick #4526 PR (#4532)

• core: ssz offset validation (#4529) (#4530)

v1.9.5

v1.9.5 - 2026-05-20

This is highly recommended patch release of Charon v1.9.5. This patch fixes an issue with Charon node panic-ing on unknown payload from another Charon node. There is also a fix of deposit fetch command that failed to verify signature in certain cases. Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.9.4..v1.9.5

Bugfix

• Fix panic on unknown unsigned data #4529
• Fix deposit fetch #4526

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.2.0	Lighthouse v8.1.0	Lodestar v1.40.0	Nimbus v26.1.0	Prysm v7.1.2	Vouch v1.12.0 ❗
Teku v26.2.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.0	✅	✅	✅	✅	✅	🟡
Lodestar v1.40.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.1.0	✅	✅	✅	✅	✅	🟡
Prysm v7.1.2	✅	✅	✅	✅	✅	🟡
Grandine v2.0.1	✅	✅	✅	✅	✅	🟡

What's Changed

• Cherry-pick #4526 PR (#4532)

• core: ssz offset validation (#4529) (#4530)

v1.10.0

v1.10.0 - 2026-04-24

This is Charon's v1.10.0 release. Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Mutable fee recipient addresses

A new command charon feerecipient allows users to edit the fee recipients of the newly built blocks and the gas limit.
Read more details about the feature and how to use it in our docs.

Read the rest of the release notes for more:

Full Changelog: v1.9.4..v1.10.0

Feature

• Mutable fee-recipient-addresses #4293 (#4407,#4401,#4341)
• Upgrade base Docker image of Charon from bookworm (Debian 12) to trixie (Debian 13)
• Upgrade go to v1.26

Testing

• Greatly improved e2e testing of Charon with other upstream and downstream clients via Kurtosis

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.4.0	Lighthouse v8.1.3	Lodestar v1.42.0	Nimbus v26.3.1	Prysm v7.1.3	Vouch v1.12.1 ❗	Remarks
Teku v26.4.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.3	✅	✅	✅	✅	✅	🟡
Lodestar v1.42.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.3.1	✅	✅	✅	✅	✅	🟡
Prysm v7.1.3	✅	✅	✅	✅	✅	🟡
Grandine v2.0.4	✅	✅	✅	✅	✅	🟡

What's Changed

• dkg: fixing processkey (#4261)

• dkg: threshold validation (#4268)

• dkg: cap p2p msg size (#4280)

• dkg: nodesigs peer idx check (#4281)

• dkg: better nonce (#4282)

• dkg: nodes count validation (#4298)

• dkg: frostp2p code quality (#4299)

• cluster: limit reader (#4300)

• dkg: bounds and shares checks (#4301)

• github: rename git release actions (#4312)

• core: 0-based index for parsig metric (#4322)

• *: bump go v1.26 (#4328)

• dkg: improved nodesigs sender id check (#4330)

• app: add HeadBlockNotFullyVerified condition fallback BN (#4332)

• app: bump version to v1.10-dev (#4336)

• github: change supported versions in different PR (#4338)

• docs: added charon audits (#4339)

• dkg: shutdown flow improvement (#4344)

• *: missed proposal debug skill (#4349)

• *: add sigagg and parsigex metrics (#4357)

• ci: group dependabot PRs by ecosystem (#4366)

• Comment out chain-split-halt (#4372)

• *: completely remove chain-split-halt (#4375)

• core: extra qbft logging (#4376)

• core: abundant QBFT logging (#4380)

• core/consensus: recv buffer debug (#4382)

• core: more logging in runInstance (#4384)

• core: new deadliner (#4386)

• app: improved loki client (#4389)

• core: revert debugging and chain-split-halt changes (#4390)

• core: clone using ssz (#4399)

• core: excessive logging fix (#4402)

• core/bcast: log submitted att and att_agg len (#4409)

• app/eth2wrap: trim requestedIdxs from cache (#4413)

• *: more unit tests for testing SSZ (#4416)

• *: add claude code settings and update memory (#4419)

• *: kurtosis smoke test workflow (#4420)

• Loop through each map; proper check for already requested idxs (#4422)

• *: switch kurtosis smoke test to iam role auth (#4426)

• dkg: enable testsyncflow (#4430)

• *: kurtosis smoke script fix (#4431)

• *: improve kurtosis smoke test reliability (#4432)

• app/*: report EL version metric (#4434)

• testutil/verifypr: fix verify pr (#4437)

• *: kurtosis smoke test cron (#4439)

• *: removed compose tests (#4440)

• app/log: fix race condition making the log test fail (#4441)

• .github/workflows: Add slack notifications to kurtosis report (#4442)

• app/health: improve healthcheck metric (#4444)

• app: bump minor version to v1.10-rc (#4448)

• Downgrade action-gh-release to v2.5.0 (#4452) (#4456)

• *: v1.10.0 rc3 (#4479)

• app/eth2wrap: fix mutation of pointer (#4486) (#4489)

• app: improved feerecipient behavior (#4491)

• app/version: bump v1.10 to stable (#4493)

• *: v1.10.0-rc6 (#4496)

v1.9.4

v1.9.4 - 2026-03-25

This is highly recommended patch release of Charon v1.9.4. This patch fixes an issue in the duties cache that is apparent in rare scenarios with some VCs (observed only Nimbus so far). Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.9.3..v1.9.4

Bugfix

• Fix duteis cache pointer mutation #4486

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.2.0	Lighthouse v8.1.0	Lodestar v1.40.0	Nimbus v26.1.0	Prysm v7.1.2	Vouch v1.12.0 ❗
Teku v26.2.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.0	✅	✅	✅	✅	✅	🟡
Lodestar v1.40.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.1.0	✅	✅	✅	✅	✅	🟡
Prysm v7.1.2	✅	✅	✅	✅	✅	🟡
Grandine v2.0.1	✅	✅	✅	✅	✅	🟡

What's Changed

• app/eth2wrap: fix mutation of pointer (#4486) (#4489)

v1.10.0-rc2

v1.10.0-rc2 - 2026-04-08

This is Charon's v1.10.0 pre-release. Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.9.3..v1.10.0-rc2

Feature

• Mutable fee-recipient-addresses #4293 (#4407,#4401,#4341)

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.2.0	Lighthouse v8.1.0	Lodestar v1.40.0	Nimbus v26.1.0	Prysm v7.1.2	Vouch v1.12.0 ❗
Teku v26.4.0 ❗	⏳	⏳	⏳	⏳	⏳	⏳
Lighthouse v8.1.3	⏳	⏳	⏳	⏳	⏳	⏳
Lodestar v1.41.1	⏳	⏳	⏳	⏳	⏳	⏳
Nimbus v26.3.1	⏳	⏳	⏳	⏳	⏳	⏳
Prysm v7.1.3	⏳	⏳	⏳	⏳	⏳	⏳
Grandine v2.0.4	⏳	⏳	⏳	⏳	⏳	⏳

What's Changed

• dkg: fixing processkey (#4261)

• dkg: threshold validation (#4268)

• dkg: cap p2p msg size (#4280)

• dkg: nodesigs peer idx check (#4281)

• dkg: better nonce (#4282)

• dkg: nodes count validation (#4298)

• dkg: frostp2p code quality (#4299)

• cluster: limit reader (#4300)

• dkg: bounds and shares checks (#4301)

• github: rename git release actions (#4312)

• core: 0-based index for parsig metric (#4322)

• *: bump go v1.26 (#4328)

• dkg: improved nodesigs sender id check (#4330)

• app: add HeadBlockNotFullyVerified condition fallback BN (#4332)

• app: bump version to v1.10-dev (#4336)

• github: change supported versions in different PR (#4338)

• docs: added charon audits (#4339)

• dkg: shutdown flow improvement (#4344)

• *: missed proposal debug skill (#4349)

• *: add sigagg and parsigex metrics (#4357)

• ci: group dependabot PRs by ecosystem (#4366)

• Comment out chain-split-halt (#4372)

• *: completely remove chain-split-halt (#4375)

• core: extra qbft logging (#4376)

• core: abundant QBFT logging (#4380)

• core/consensus: recv buffer debug (#4382)

• core: more logging in runInstance (#4384)

• core: new deadliner (#4386)

• app: improved loki client (#4389)

• core: revert debugging and chain-split-halt changes (#4390)

• core: clone using ssz (#4399)

• core: excessive logging fix (#4402)

• core/bcast: log submitted att and att_agg len (#4409)

• app/eth2wrap: trim requestedIdxs from cache (#4413)

• *: more unit tests for testing SSZ (#4416)

• *: add claude code settings and update memory (#4419)

• *: kurtosis smoke test workflow (#4420)

• Loop through each map; proper check for already requested idxs (#4422)

• *: switch kurtosis smoke test to iam role auth (#4426)

• dkg: enable testsyncflow (#4430)

• *: kurtosis smoke script fix (#4431)

• *: improve kurtosis smoke test reliability (#4432)

• app/*: report EL version metric (#4434)

• testutil/verifypr: fix verify pr (#4437)

• *: kurtosis smoke test cron (#4439)

• *: removed compose tests (#4440)

• app/log: fix race condition making the log test fail (#4441)

• .github/workflows: Add slack notifications to kurtosis report (#4442)

• app/health: improve healthcheck metric (#4444)

• app: bump minor version to v1.10-rc (#4448)

• Downgrade action-gh-release to v2.5.0 (#4452) (#4456)

v1.9.3

v1.9.3 - 2026-03-25

This is highly recommended patch release of Charon v1.9.3. This patch fixes memory leak in the duties cache. Feedback from early testers is very welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.9.2..v1.9.3

Bugfix

• Fix duteis cache memory leak #4413 #4422

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.2.0	Lighthouse v8.1.0	Lodestar v1.40.0	Nimbus v26.1.0	Prysm v7.1.2	Vouch v1.12.0 ❗
Teku v26.2.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.0	✅	✅	✅	✅	✅	🟡
Lodestar v1.40.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.1.0	✅	✅	✅	✅	✅	🟡
Prysm v7.1.2	✅	✅	✅	✅	✅	🟡
Grandine v2.0.1	✅	✅	✅	✅	✅	🟡

What's Changed

• app/version: bump to v1.9-rc (#4414)

• *: v1.9.3-rc1 (#4415)

• app/eth2wrap: second duties cache fix (#4424)

• Remove reporting (#4435)

• app/version: bump v1.9 to stable (#4436)

v1.9.3-rc1

v1.9.3-rc1 - 2026-03-25

This a pre-release Charon v1.9.3-rc1. This patch fixes memory leak in the duties cache. Feedback from early testers is very welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.9.2..v1.9.3-rc1

Bugfix

• Fix duteis cache memory leak #4413

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.2.0	Lighthouse v8.1.0	Lodestar v1.40.0	Nimbus v26.1.0	Prysm v7.1.2	Vouch v1.12.0 ❗
Teku v26.2.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.0	✅	✅	✅	✅	✅	🟡
Lodestar v1.40.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.1.0	✅	✅	✅	✅	✅	🟡
Prysm v7.1.2	✅	✅	✅	✅	✅	🟡
Grandine v2.0.1	✅	✅	✅	✅	✅	🟡

What's Changed

• app/version: bump to v1.9-rc by @obol-platform in #4414
• *: v1.9.3-rc1 by @KaloyanTanev in #4415

Full Changelog: v1.9.2...v1.9.3-rc1

v1.9.2

v1.9.2 - 2026-03-11

This release Charon v1.9.2 is recommended for Operators sending logs to Obol. This patch improves the performance of nodes sending logs, by taking the log submission out of contention with the main runtime. Feedback is welcome and appreciated, please use github issues or discord if you have trouble with this release.

Read the rest of the release notes for more:

Full Changelog: v1.9.1..v1.9.2

Bugfix

• Update Loki #4393

Compatibility Matrix

This release of Charon is backwards compatible with Charon >= v1.0., though only v1.7. and newer are Fulu-ready.

The below matrix details a combination of beacon node (consensus layer) + validator clients and their corresponding versions the DV Labs team have tested with this Charon release. More validator and consensus client will be added to this list as they are supported in our automated testing framework.

Legend

• ✅: All duties succeed in testing
• 🟡: All duties succeed in testing, except non-penalised aggregation duties
• 🟠: Duties may fail for this combination
• 🔴: One or more duties fails consistently

Validator 👉 Consensus 👇	Teku v26.2.0	Lighthouse v8.1.0	Lodestar v1.40.0	Nimbus v26.1.0	Prysm v7.1.2	Vouch v1.12.0 ❗
Teku v26.2.0 ❗	✅	✅	✅	✅	✅	🟡
Lighthouse v8.1.0	✅	✅	✅	✅	✅	🟡
Lodestar v1.40.0	✅	✅	✅	✅	✅	🟡
Nimbus v26.1.0	✅	✅	✅	✅	✅	🟡
Prysm v7.1.2	✅	✅	✅	✅	✅	🟡
Grandine v2.0.1	✅	✅	✅	✅	✅	🟡

What's Changed

• app: bump patch version to v1.9-rc (#4373)

• *: remove chain-split-halt (#4374)

• core: extra qbft logging (#4376) (#4377)

• core: abundant QBFT logging (#4381)

• core/consensus: recv buffer debug (#4382) (#4383)

• core: more logging in runInstance (#4384) (#4385)

• core: new deadliner (#4386) (#4387)

• *: central logging fix (#4391)

• app/version: bump v1.9 to stable (#4392)