Vero v1.5.0-rc.0 adds support for the Gloas fork on the Hoodi testnet, including new validator duties and post-Gloas builder configuration.

Hoodi operators should upgrade before Gloas activates at epoch 132352 (Oct-26-2026 17:42:48 UTC).

This is a Hoodi-only release. It is incompatible with Ethereum mainnet, Gnosis Chain, and the Chiado testnet. Operators on those networks should continue using v1.4.1.

Vero v1.5.0-rc.0 is compatible with the Glamsterdam-ready client releases listed below. Ensure you are running compatible client versions before updating Vero.

🧱 Gloas support

Vero now supports payload timeliness committee (PTC) duties, signed proposer preferences, and execution payload envelope signing and publication for locally built blocks. Attestation and sync committee duties follow earlier deadlines introduced with Gloas. After Gloas, connected beacon nodes can contact builders directly using the configuration supplied by Vero:

The existing --builder-boost-factor continues to control the preference for externally built blocks.

Builder bid selection is handled by the connected beacon nodes. Pre-Gloas validator registrations remain controlled by --use-external-builder.

⛽️ Scheduled Gas Limits

Vero now supports EIP-8261 gas limit schedules after Gloas. Hoodi’s configured default increases to 200 million gas at epoch 132352.

Gas limit preferences use the following precedence:

1. Per-validator override configured through the Keymanager API.
2. Explicit --gas-limit setting.
3. Active network gas limit schedule, falling back to the network default pre-Gloas.

Explicit settings above the scheduled recommendation produce a warning and remain honored.

💻 Beacon node URLs no longer require unique hostnames

Previously, Vero required all beacon node URLs provided via --beacon-node-urls to have unique hostnames. As of this release, you can add multiple beacon nodes running on the same host on different ports without having to alias them.

📊 Monitoring Changes

Action required for custom dashboards and alerts: the host metric label has been renamed to netloc. Its value now identifies the host and port, allowing multiple services on the same host to be distinguished.

Both bundled Grafana dashboards have been updated. The dashboards uids have been updated to io-serenita-vero-detailed and io-serenita-vero-simple.

Additional monitoring changes:

• New vc_published_ptc_attestations_total and vc_published_payload_envelopes_total metrics
• Add Grafana panel for published PTC attestations.

Changes included in this release

Features

• Add support for Gloas fork by @eth2353 in #274
• Add EIP-8261 gas limit schedule support by @eth2353 in #358

Bug Fixes

• Fix race condition in duties update logic by @eth2353 in #339
• Fix voluntary exit signature domain in Keymanager API by @eth2353 in #336

Maintenance

• Stop tracemalloc after test data collection by @eth2353 in #337
• Sync gnosis preset names with upstream by @eth2353 in #338
• Bump pre-commit hook versions by @eth2353 in #341
• Bump dependencies by @eth2353 in #342
• Replace the SSZ library with spy-ssz by @eth2353 in #333
• Bump uv and Python minor version in Dockerfile by @eth2353 in #344
• Add Beacon API spec compliance verification to tests by @eth2353 in #345
• Bump aiohttp to 3.14.3 by @eth2353 in #346
• Bump Vero version in pyproject.toml by @eth2353 in #349
• Include beacon_nodes_proposal in initialization loop by @eth2353 in #347
• Update vero package version to 1.4.1 by @eth2353 in #350
• Update assertoor config - set Gloas epoch by @eth2353 in #355
• Reconnect stalled beacon node event streams by @eth2353 in #359
• Bump dependencies by @eth2353 in #362
• Prepare for v1.5.0-rc.0 by @eth2353 in #361

Full Changelog: v1.4.1...v1.5.0-rc.0