v25.11.0

Notes

Nimbus v25.11.0 is a high-urgency release for mainnet due to the impending Fusaka fork on 3 Dec and a low-urgency release on other networks.

Improvements

• Schedule Fulu on mainnet:
  #7702

Urgency guidelines

low-urgency: update at your own convenience, sometime within our normal monthly update cycle

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
faadafdfa485f347e28ee219f4905afe78b529c0070264b4d4ad86fb9b4e466975c7bc14e2b766dc72ab2581674aae311143acbf21df32abde518813cc28c92d  nimbus_beacon_node
539dc14cedc6ccb8d7a07d27a3353b9fe611502c7107af38b4514669c22df16b97a3cc7666fe4ce23308a7a0d11356458b71077872123fe45b92a28ac96dd04a  nimbus_validator_client
# Linux ARM64
3d6b55b8435cdd8af929dacbec951954a8c3915f75f2d6730ac7fe93781fc498d086ccdb5731d2290ebda8a2fd0a0fe012be2763835192e657ed8a2345b64c7f  nimbus_beacon_node
39ed2321c09b23207ad09e2457552f331e878e1a43852017aacb52f5751ca941418a4ff29386af1e2a5d1c24a2449866c9398dd0b4eedee465062d28de2c8f0c  nimbus_validator_client
# Linux ARM
2f51e1e588c49a2d8403ac23cbaba5236cb4d1446349c82f53b9872e7100226606a4f23ec6e4398506e22cb7e5f8afa2fa56598777f539547e5db391ce33b6ca  nimbus_beacon_node
73965d5e98db3afc8bce754ec938676491e8e722030e000c73a691825d162b92a8f9a2d1415f94245f1939bbb79f1b3914da90a042b25f42410ce550ab32dfda  nimbus_validator_client
# Windows AMD64
0ed6ace179d2edeeeb102e30b2fed05ad0848923001d045e5dacfd9adb2b05786c2cf2d4f059ae6ea15b7a9d257b04e245da4631a7f39543a52d771e98f4ba5e  nimbus_beacon_node.exe
b641d2d6e5ab5f6284d86cccfeaa023c252a99004db1e1b72ed72b314388acb2cb4a4a36f0dae74d4bd19d0e89ca5efd3c37a4be2b0d11adef5cc194dbbe27f7  nimbus_validator_client.exe
# macOS ARM64
93b322312dbcc5818d99024c44ba64ab4c8ce39e997dc5b4a3d9d9f4e0b12df7d0e67d6f3a9a79e31c91880325b20cafd4f51cfb79ec8c88ae24f4286aae1aa8  nimbus_beacon_node
541d1289c811b38c18e60a1957b9dad9140c98e701e03679b5e05c0160cbde61399e7409df78f6b27b005ffa6067d636f2a81887b6cae6fde5e8d460286f85a6  nimbus_validator_client

v25.10.0

Notes

Nimbus v25.10.0 is a low-urgency release which increases the default gas limit to 60M, improves beacon API support, adds runtime configuration flexibility, and removes macOS amd64 support.

Improvements

• Increase default builder API gas limit to 60M:
  #7555

• Support --peerdas-supernode to require beacon node to operate as a supernode:
  #7629

• Support runtime configuration of SECONDS_PER_SLOT:
  #7639
  #7643
  #7644
  #7645
  #7647
  #7652
  #7653
  #7654
  #7658
  #7661

• Implement getBlobs beacon API endpoint:
  #7670

• Ensure validator client uses non-deprecated beacon API attestation endpoints:
  #7642

• Double trusted node sync state download timeout to 6 minutes:
  #7677

• Make REORG_HEAD_WEIGHT_THRESHOLD and REORG_MAX_EPOCHS_SINCE_FINALIZATION runtime-configurable:
  #7620

Fixes

• Fix consensus fork when validator client publishes attestations:
  #7689

• Fix Nix builds:
  #7585

• Ensure validator client always targets the correct slot:
  #7571

• Stop using obsolete TTFB_TIMEOUT and RESP_TIMEOUT configuration:
  #7619

Urgency guidelines

low-urgency: update at your own convenience, sometime within our normal monthly update cycle

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
8aa82462d7863cac9468ca81fd1e0821cea11ecb485e2447df575c8190d80fb016ac1f63e0bcd81e230c9579be02dfb2dd2815f7c28d0c23b50cd79f2b64b11b  nimbus_beacon_node
b0da024b30ff1ea1186ba96f7baed806979a5ddebeeb488141d5c3a34769d3980a74da252dc57f8871d48381bdc183c798e60ea3b0fc5f934c8f9b3dcc24acff  nimbus_validator_client
# Linux ARM64
87521608ff5e5fd64772e57c003117c259215f5fd3bb25979e91e63978a0bfdc26e666bba9e34cf21999908ac7f1e92c8ce50609c01612ab8ce3a28a526f6f0e  nimbus_beacon_node
f0f739c8bd7c85858383a7931a2384fb4baa46b9d390c71c1fe33ece4535cd848b65ba904623edf44a93eace4fbe0a32b460dc68a53a41fbf482ff809f31af34  nimbus_validator_client
# Linux ARM
12fbec4ccf0ec25b9cc7aa560045b6e08c765d8b3bcd9df69ca7e5d15b0689e6992e81415c853f6887afe7560808cd940b43317135bcb118e4ecb8e954d4c272  nimbus_beacon_node
fbfaef411aa0a167aa02f0a7c17bee508af725d945e0bd060f9065618298e22c5583d927194bb546dc902c8e64b9aaea0298cddf827865e4a9a704fd3cb1e36a  nimbus_validator_client
# Windows AMD64
cbd9c80b3a253ec0aac22d063dac2b0f31803e5054a34abb5ed3e4b8ec83a9a13138f0d52d1a0252369db2133a7612eee13c13894326936aa8536916cd9359ed  nimbus_beacon_node.exe
dbd1b23021d4655d4a4cdbb0a841ab685acbbd2a63905adacd5ceaa9a4274898b21c7a768d0c5ca6b24b2b5bb81dc2d7d78b12e468b9ea2faef817b3b0437055  nimbus_validator_client.exe
# macOS ARM64
2b31cc3589485d8fedf3156cccb344ba7807eec4b162bda908b38f421cdddbfd381a546eeb5edc87c88352944c3293df91253969429cf81774d315b35ade71f1  nimbus_beacon_node
88515ef642d9ac1fb1aed2e5d1a5ddc5722f1278983a8d27d800f53d7da061e28aa050b7413f101a9c91af0eb8e0f01fc6c4b3958f0a8ba018ffd97e2689d0e4  nimbus_validator_client