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v23.5.1

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@github-actions github-actions released this 19 May 09:32
· 2349 commits to stable since this release
v23.5.1
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Notes

Nimbus v23.5.1 is a medium-urgency point release improving the compatibility of Nimbus with 3rd party validator clients and beacon nodes and introducing the support for incremental pruning. If you are still not using the --history:prune option, we recommend testing it in a non-production environment, as it will be enabled by default in our next release.

Breaking changes

  • The Nimbus validator client no longer accepts under-specified beacon node URLs that doesn't include a port number or a protocol scheme. When a protocol scheme is specified, Nimbus now uses the default port for the selected protocol (80 for HTTP and 443 for HTTPS):
    #4921

Improvements

  • The history pruning is now incremental and no longer results in start-up delays when the --history:prune option is enabled on an existing node:
    #4887

  • Nimbus now uses the withdrawal address of the validator as a default choice for the fee recipient address if the user has not provided any value in the configuration:
    #4968

  • Nimbus now supports the upcoming Capella hard-fork in the Gnosis network:
    #4936

Fixes

  • The Capella-related properties MAX_BLS_TO_EXECUTION_CHANGES, MAX_WITHDRAWALS_PER_PAYLOAD, MAX_VALIDATORS_PER_WITHDRAWALS_SWEEP and DOMAIN_BLS_TO_EXECUTION_CHANGE were missing from the /eth/v1/config/spec REST API end-point:
    #4925

  • The /eth/v1/validator/blinded_blocks/{slot} was supplying incorrectly encoded response when requested to return SSZ data:
    #4943

  • The safety checks associated with the --weak-subjectivity-checkpoint parameter are now compliant with the latest Ethereum specs:
    #4923

  • The Nimbus validator client was using HTTP pipelining which is not supported by all beacon node implementations:
    #4950

  • The "Connection to EL node degraded" warning is now printed only after sufficiently persistent connectivity issues with the EL client:
    #4960

  • After being only briefly disconnected from the execution layer client, the Nimbus beacon node was prematurely setting the execution_optimistic flag when returning validator duties:
    #4955

  • Nimbus now allows the builder to respond 500ms later than the spec-mandated timeout in order to account for possible additional delays introduced by proxies such as mev-boost:
    #4964

  • During sync committee period transitions, for a brief period of time there was a low risk of producing an invalid sync committee contribution:
    #4953

  • Nimbus v23.5.0 introduced an unintended backwards-incompatible change in the parsing of remote keystores which is addressed in this release:
    #4967

Nimbus v23.5.0 was a medium-urgency upgrade that addresses a critical issue which was introduced in the previous version (v23.4.0). The issue was causing missed block proposals for users who were utilizing an external builder.

Improvements

  • After Nimbus completes a trusted node sync executed with the --trusted-block-root flag, it will enable signature verification of all backfilled blocks, thereby reducing the assumed trust in the specified beacon node URL to merely expected data availability rather than expected data authenticity:

    #4858

  • The /eth/v1/node/syncing BeaconAPI endpoint now supports the standardized el_offline property:

    #4860
    ethereum/beacon-APIs#290

  • The secp256k1 library has been upgraded to version 0.3.1.

  • Nimbus now supports an experimental extension of the Web3Signer protocol, allowing the signer server to verify certain properties of the signed block, such as the specified fee recipient:

    https://nimbus.guide/web3signer.html#verifying-web3signer
    #4775
    #4912

Fixes

  • Nimbus was submitting blocks with incorrect state root to the attached external builder which resulted in missed block proposals:

    #4889

  • Nimbus was skipping block proposals due to an inappropriate triggering of the slashing protection logic when an external builder was providing a block with insufficient value to be selected under the new --local-block-value-boost mechanism:

    #4894

  • Nimbus was crashing after certain unsuccessful requests to the external block builder:

    #4890

  • The Nimbus validator client was failing to perform sync committee duties when attached to multiple beacon nodes and when some of them were only optimistically synced:

    #4878

  • The --trusted-block-root option was not visible in the trustedNodeSync help listing:

    #4859

  • Nimbus was experiencing sporadic request time outs when being connected to the execution client over HTTP. Under specific circumstances this was introducing risk for missed attestation:

    d784672

  • The required traffic to the execution client was reduced by preventing the sending of the same block multiple times:

    #4850

Urgency guidelines

low-urgency: update at your own convenience, sometime within our normal update cycle of two weeks

medium-urgency: may contain an important stability fix, it is better to update sooner rather than later

high-urgency: update as soon as you can, this is a critical update required for Nimbus to function correctly

SHA512 checksums

# Linux AMD64
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# Linux ARM64
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# Linux ARM
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# Windows AMD64
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# macOS AMD64
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# macOS ARM64
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