log :: 2026‐06

2026-06-12

Weekly Update (@etorreborre)

What did you work on this week?

Tightening-up some chain store operations:

• child_tips was not operating on a snapshot of the database.
• remove_blocks was not transactional
• I removed the "optimistic transaction" mode because our design guarantees that we cannot have concurrent writes (we still need to batch writes to make them atomic).

Starting a seemingly small task: properly check the opcert last sequence number when validating a header:

• The check itself involves accessing both the chain store and the ledger. Our current code was a bit convoluted so I did a refactor to fully delegate the responsibility for checking a header to a ledger effect.
• Along with the check I improved the testing of headers based on the existing data files.
• I added some persistence inside the ledger volatile state + db for opcert sequence numbers.
• I started working on the extraction of those numbers from ledger states during bootstraping.

What outcome/key result did it support?

• Being a reliable relay node

What's immediately next?

• Testing the full chain which might imply the recreation of snapshots for the end to end tests.
• Prepare PRs. I might have to do a separate PR just for the refactoring because it is quite large.
• Resume the work on using cuddle and antigen to test the decoding of data types.

2026-06-12

Weekly Update (@KtorZ)

What did you work on this week?

• Setting up the new release & distribution pipeline:

  • Adapted and extended workflows to include Windows (.zip and .msi), as well as .deb & .rpm: workflows/release.yml
  • Generate draft GitHub release on workflow dispatch with tagged artifacts, for example: v10.10.20260611
  • Generate README instructions, Homebrew formula, Nix flake and Winget manifests on draft publication in workflows/post-release.yml, for example: PR#952
  • Separate Docker images creation into composite workflow to ensure re-use between nightly builds and release builds workflows/docker-publish.yml.
  • Capture the new setup and process in EDR-025
  • Reworked, redesigned and completed the nightly builds download page.

• Make Amaru's bootstrap and initial start more flexible to allow for easier execution in Antithesis: PR#886

What outcome/key result did it support?

• Distributing Amaru to SPO and preparing the ground for a more professional software delivery,

What's immediately next?

• Investigate and address ledger bugs visible from syncing
• Restore ledger test epoch snapshots for at least Preview and PreProd