github sigp/lighthouse v1.5.0-rc.0
Numbericons [PRE-RELEASE]

latest releases: v5.3.0, v5.2.1, v5.2.0...
pre-release3 years ago

⚠️ Pre-Release: Not for Production Use ⚠️

This is a pre-release. It is not production-ready and not recommended for mainnet use.

Whilst we don't recommend this release for critical and/or mainnet use, we do recommend that users upgrade their Pyrmont and Prater nodes to this version. We assume that nothing critical is occurring on these testnets.

For more information on pre-releases, see: https://lighthouse-book.sigmaprime.io/advanced-pre-releases.html

Pyrmont Altair Upgrade

This update is mandatory for all nodes on the Pyrmont testnet. At 2021-08-19 12:00:07Z, Pyrmont will undergo an irregular state transition to upgrade to the Altair specification (i.e., there will be a hard fork).

Users running Lighthouse v1.4.0 or earlier will fail to undergo this state-transition and will be left on the wrong side of history.

The Eth2 developers (including the Lighthouse team) are upgrading Pyrmont in anticipation for the same upgrade on mainnet. Failing to upgrade your Pyrmont nodes will impede their efforts to deliver a smooth upgrade on mainnet. Please upgrade your Pyrmont nodes!

To be clear, mainnet users should not implement this release-candidate version. Prater users may upgrade, but are not required to.

Summary

This is a substantial update to Lighthouse with two important caveats:

  • This update involves a change to the Beacon Node database schema which is presently not backwards compatible. After upgrading the Beacon Node (BN), users will need to delete the existing BN database and re-sync in order to revert to a previous version. This does not affect the slasher or validator client. Re-syncing is only required on a downgrade, there is no need to re-sync if upgrading to this release from an earlier version --- the database migration will happen automatically.
  • Pyrmont users must upgrade their BN and Validator Client (VC) at the same time. Due to the upcoming Altair upgrade, pre-v1.5.0-rc.0 VCs and BNs are incompatible. This only applies to Pyrmont, other networks are not affected.

Failing to upgrade both the BN and VC on Pyrmont will result in the VC declaring the BN to be "incompatible". The solution is simple; update and restart both processes.

With the caveats clearly stated, the Lighthouse team is proud to present this release which contains:

  • Full support for the upcoming Altair fork on the Pyrmont testnet at 2021-08-19 12:00:07Z.
  • A refined and improved networking stack.
  • Doppelganger protection (disabled by default).
  • The reorg event has been added to the HTTP API.
  • Countless bug/annoyance fixes.
  • Caching of attestations for unknown blocks, to improve validator rewards (#2319)
  • Hardware-optimized hashing (#2426)
  • Faster and more reliable attesting for validators (#2478)
  • Support for compiling under the latest version of Rust (#2483)

Breaking Changes

  • The database schema used for v1.5.0-rc.0 nodes (including freshly-synced nodes and those upgraded from earlier versions) is not compatible with earlier versions of Lighthouse. This was mentioned earlier.
  • Exclusively for Pyrmont nodes, the VC and BN must both be running v1.5.0-rc.0. Earlier versions are not compatible with v1.5.0-rc.0.
  • Some Prometheus metrics and the /lighthouse/validator_inclusion endpoints have been modified to be Altair-compatible. See #2416 for detail.

All Changes

Binaries

See pre-built binaries documentation.

The binaries are signed with Sigma Prime's PGP key: 15E66D941F697E28F49381F426416DC3F30674B0

System Architecture Binary PGP Signature
x86_64 lighthouse-v1.5.0-rc.0-x86_64-apple-darwin.tar.gz PGP Signature
x86_64 lighthouse-v1.5.0-rc.0-x86_64-apple-darwin-portable.tar.gz PGP Signature
x86_64 lighthouse-v1.5.0-rc.0-x86_64-unknown-linux-gnu.tar.gz PGP Signature
x86_64 lighthouse-v1.5.0-rc.0-x86_64-unknown-linux-gnu-portable.tar.gz PGP Signature
aarch64 lighthouse-v1.5.0-rc.0-aarch64-unknown-linux-gnu.tar.gz PGP Signature
aarch64 lighthouse-v1.5.0-rc.0-aarch64-unknown-linux-gnu-portable.tar.gz PGP Signature
System Option - Resource
Docker v1.5.0-rc.0 sigp/lighthouse

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