What happened.
Hydra’s closeTx previously selected its redeemer and stored accumulator through different checks. The supplied record says this could wrongly reject a snapshot with nothing pending when it was one version behind.
The merged change instead derives the close redeemer from the applied-action check already used by contestTx. The repository change also adds a test covering the outdated-close case.
Why it matters.
A rejected close can prevent a head from settling on its expected path. Aligning the close and contest decision logic removes the specific avoidable failure mode described in the source record.
What to watch next.
Watch for evidence that this merged development-branch change is included in a tagged release or deployed, and for any further testing or incident detail around outdated snapshot closes.
A tagged release, deployment evidence, or additional test and incident detail for the outdated-close path.
Upstream references and independent checks
Digest dated 2026-09-15 · upstream model claude-sonnet-4-6. Direct links are matched to all 1 upstream source IDs.
- 1Select the close redeemer from the applied-action checkDirect upstream source ·
ddd05164c7486c9afe968b4b703ea4cecc2dd87f
This Research brief was generated by Terra from a dated upstream research digest. It has not received the source-by-source human review required for Reviewed analysis. Material limit: This is a narrow, low-confidence assessment based on one approved official repository commit; it provides no frequency, deployment, real-world occurrence, or loss evidence.