v1.6.0-rc1 - 2025-08-07

This is Charon's v1.6.0 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: v1.5.2..v1.6.0-rc1

Feature

• Replace go-eth2-client with in-house solution (#3862)
• Put QUIC behind a feature flag (#3814)
• Support deleting partial exits (#3838)
• Launchpad link per network (#3886)

Bug

• Increased duty timeout margin (#3800)
• Set content type in alpha test (#3808)
• Fixed vapi monitoring code (#3812)
• Fix attestation committee index (#3820)
• Remove fulu from fork schedule (#3822)
• Add missing encoding types (#3853)
• Fix flaky test (#3888)

Refactor

• Added sse_head_delay buckets (#3795)
• Changed reorg gauge to historgram (#3796)
• Changed sse-head-delay buckets (#3816)
• Replace HasPrefix+TrimPrefix with CutPrefix (#3824)
• Use maps.Copy for cleaner map handling (#3856)
• Improve fallback beacon node logic and metric (#3870)
• Batch duplicate logs (#3835)
• combine default input should align with create cluster default output. (#3815)

Compatibility Matrix

This release of Charon is backwards compatible with Charon v1.0.*, v1.1.*, v1.2.0, v1.3.*, v1.4.*, v1.5.* Though only v1.3.* and newer are Pectra-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

What's Changed

• app: bump to v1.6-dev (#3792)

• app: added sse_head_delay buckets (#3795)

• *: changed reorg gauge to historgram (#3796)

• core: increased duty timeout margin (#3800)

• cmd: testinfra to verify io perm (#3806)

• cmd: test publish using temp enr key (#3807)

• cmd: set content type in alpha test (#3808)

• app: fixed vapi monitoring code (#3812)

• app: changed sse-head-delay buckets (#3816)

• *: fix attestation committee index (#3820)

• utils: remove fulu from fork schedule (#3822)

• testutil: replace HasPrefix+TrimPrefix with CutPrefix (#3824)

• core: fix some function names in comment (#3833)

• *: bump linter to v2.2.1 (#3837)

• core: make function comment match function name (#3845)

• *: removed addvalidators command (#3850)

• core/validatorapi: add missing encoding types (#3853)

• *: bump linter v2.2.2 (#3855)

• *: use maps.Copy for cleaner map handling (#3856)

• docs: update dv-launchpad URL to launchpad.obol.org (#3858)

• workflows: remove unused Discord webhooks (#3864)

• core/tracker: fix tracker inclusion after PR clash (#3873)

• *: bump linter v2.3.1 (#3883)

• cmd: launchpad link per network (#3886)

• app/eth1wrap: fix flaky test (#3888)

• app/version: bump to v1.6-rc (#3890)