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SRE Q3 2025 Update

· 2 min read
John Lotoski

2025-07 - 2025-09

Main achievements

In addition to ongoing general maintenance and support of cardano environments, some highlights of SRE achievements for this quarter include:

  • All IOE cardano-parts supported node environments, including preview, preprod, and mainnet were upgraded to cardano-node release 10.5.1 with various additional pre-release candidate versions tested.

  • Changes required for the new tracing system to become the default tracing system have been largely implemented in cardano-node, including various scripts, nixos services, and OCI container updates. Similar changes supporting the new tracing system have been also implemented elsewhere, such as the iohk-nix configuration repo, blockperf monitoring tool, and nixos based cardano-parts node cluster tooling stack, allowing for the upcoming cardano-node 10.6.x release later this year to default to the new tracing system.

  • With the exception of a few canary machine deployments, all IOE testnet and mainnet cardano-node infrastructure are now running using the new tracing system.

  • Cardano-node release binaries have been cleaned up and OCI containers now include the snapshot-converter binary.

  • Adawallet and the cardano-airgap image were feature upgraded to be compatible with operations required for the Midnight Glacier Airdrop, including cardano-signer signing and native token UTxO handling.

  • The devx-ci cluster has been expanded to include Oakhost Darwin build capacity.

Details for this and many other SRE work items can be found in the biweekly SRE reports.