Version 26.10.0

This is a recommended release

Manual intervention needed if coming from v26.7.2-dev through v26.9.0-dev

If you are updating from an Eth Docker version (check with ./ethd version) of v26.7.2-dev up to v26.9.0-dev, and you use grafana.yml or grafana-cloud.yml, you may have a directory that was incorrectly created with root ownership. In this case, ./ethd update would fail with an unsubtle error
To fix this manually, cd ~/eth-docker or into the directory where you have Eth Docker installed, then sudo rm -rf ./prometheus/node-exporter-text
After that you can safely run ./ethd update

Deprecations

• The legacy validator-exit service for Lighthouse, Lodestar, Nimbus, Prysm and Teku is deprecated and support will be removed after Hegotá hardfork. Please switch your tooling to use ./ethd keys sign-exit and ./ethd keys send-exit instead
• Nethermind's legacy Patricia/HalfPath DB is deprecated, support will be removed when Nethermind removes support for it. ./ethd update will warn you; you can switch to a Flat DB via ./ethd resync-execution
• Nethermind's legacy nm-eth1-data volume is deprecated, support will be removed when Nethermind removes support for its Patricia/HalfPath DB. ./ethd update will warn you; you can switch to a supported volume and Flat DB via ./ethd resync-execution
• The consensus layer client TCP transport port is deprecated. Make sure to port-forward its UDP QUIC transport port and UDP discovery port. Use ./ethd port-check to get an overview. Support will be removed when the clients remove it, expected sometime Q1 2027
• mev-boost.yml and commit-boost-pbs.yml will be removed after Glamsterdam hardfork on mainnet, expected December 2026. Clients are implementing ePBS support, which Eth Docker will support as they do. ./ethd update will warn you

Breaking changes

• Require Nethermind v2.0.0 or later, for FlatDB support
• If using stakewise-expiry, require Geth v1.17.7 or later
• If using ePBS parameters, require Lodestar v1.47.0 or later
• If using blob-archive, require Nimbus v26.9.0 or later
• If using Caplin, require Erigon v3.7.1 or later
• Require Docker buildx

Changes

• New ePBS variables in .env: EPBS_BUILDERS, EPBS_BUILDER_URLS, EPBS_MIN_BID, EPBS_BUILD_FACTOR
• Add ./ethd keys [set|get|delete]-builder command for ePBS
• Support ePBS on Lodestar
• Add ./ethd port-check command. Give it a whirl, it's nifty. ./ethd port-check --troubleshoot gives instructions on how to test incoming ports
• Default to Nethermind FlatDB
• Support Besu bonsai archive
• Support era1 file import for Besu full node
• Add blob-archive to Nimbus
• Nethermind rolling-expiry keeps 33_024 epochs, not 1 year
• ./ethd keys accepts comma-separated validator pubkeys
• Update Lido oracle allowlist. Thanks to @cnupy!
• Support QUIC with Nimbus Unified
• Support QUIC with Caplin
• Ephemery network support for Lighthouse, Nimbus, Prysm, Geth, Nimbus EL, Nimbus Unified
• New EL_NODE_TYPE stakewise-expiry for Geth, Nethermind and Reth
• Support ENR bootnodes for Nethermind custom networks
• Geth source build uses Go 1.27
• Increase Besu default heap to -Xmx7g, to help with era1 file import. Adjust with BESU_HEAP variable in .env
• Attempt to keep custom CL_NODE during ./ethd config
• Nag Ubuntu users if their docker.io is old
• Drop default Tempo trace retention to 3 days. Existing tempo/tempo.yaml configuration files are not adjusted automatically
• Bump Tempo to v3.1.0
• Move web3signer key security reduction to w3s-tools.yml

Bug fixes

• Fix Teku dual stack support; separate ports are required for now
• ./ethd space displays space only once when disk space is low
• Fix ./ethd attach-geth command
• Fix an issue where ./ethd terminate in eth-docker would also delete volumes in test-eth-docker
• Guard against broken CORE_FILES variable in .env during ./ethd update migration
• Fix ./ethd update on macOS
• Set MAX_BLOBS to at least 1 during ./ethd config
• Fix Nimbus source build
• Work around keymanager bugs in Lighthouse and Prysm