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SRE Team Update

· 3 min read
John Lotoski
John Lotoski
Service Reliability Engineer

High level summary​

The SRE team continues work on Cardano environment improvements and general maintenance.

Some notable recent changes, updates or improvements include:

  • Cardano-node 10.5.4 has been released and 10.6.2 has been pre-released and deployed to all IOE release and pre-release environments.

  • New arm64 release artifacts and OCI images are now available with node 10.6.2 pre-release.

Repository Work -- Merged​

Cardano-mainnet​

cardano-mainnet PR#41:

  • Sets cardano-node release to 10.5.4. The private IOG pools, IOGP{2..4} have been retired. All private relays have been stopped as well as the retired block forging pool machines. Includes various improvements with cardano-parts release v2026-02-12. See the PR description for additional details.

Cardano-parts​

cardano-parts release v2026-02-12:

  • This release updates cardano-node release to 10.5.4, cardano-node pre-release to 10.6.2, cardano-db-sync pre-release to 13.7.0.0 and cardano-faucet to 10.6. Dijkstra network support has been added to process-compose, recipes and scripts. The demo and demo-ng scripts have been substantially improved for Protocol Version 11 intra-era hard fork support, Constitutional Committee key voting, DRep registration, and constitution adoption. Other miscellaneous improvements and fixes are detailed in the PR description.

Cardano-playground​

cardano-playground PR#53:

  • Sets cardano-node release to 10.5.4, cardano-node pre-release to 10.6.2, cardano-db-sync pre-release to 13.7.0.0 and cardano-faucet to 10.6. Dijkstra network support has been added to recipes and scripts. The demo and demo-ng scripts have been substantially improved for Protocol Version 11 intra-era hard fork support, Constitutional Committee key voting, DRep registration, and constitution adoption. Includes various improvements with cardano-parts release v2026-02-12. See the PR description for additional details.

cardano-playground PR#54:

  • Upgrades the cardano environment switching for recipes and scripts to a sourcing method instead of the prior GDB parent shell var modification approach which has become more fragile over time.

Cardano-node​

cardano-node PR#6424:

  • Bumps cardano-node cabal version to 10.6.2
  • Bumps iohkNix for 10.6.2 configuration updates (see iohk-nix PR#609 for details)
  • Updates CI files for configuration changed in 10.6.2

cardano-node PR#6425:

  • Bumps iohk-nix for 10.5.4 preview checkpoint file, peer snapshot and ledger updates
  • Adjust CI files

Iohk-nix​

iohk-nix PR#609:

  • Adds a preview checkpoint file
  • Adds mempool timeout docs and bumps MinNodeVersion to 10.6.2
  • Adds dijkstra network config
  • Updates per environment peer-snapshot file and useLedgerAfterSlot
  • Fixes mkConfigHtml function html spacing when using multi-line strings
  • Sets mkConfigHtml to use new default tracing for the genesis file inclusion check
  • Switches Dijkstra network to GenesisMode w/ peer-snapshot as default

Repository Work In Progress -- PRs and Branches​