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ADR 0075: Concurrent fences and a mid-fence crash test are mandatory before expiring leases ship (M5b)

  • Status: Accepted
  • Date: 2026-11-02
  • Ledger id: D-0075
  • Tags: reliability
  • Supersedes: none
  • Superseded by: none
  • Related: none

Context

The maintainer accepted the recommendations that closed these open questions on 2026-11-02. The sequential M0 fencer can break the 8.4 bound once several expiring leases exist.

Decision

Concurrent fences and a mid-fence crash test are mandatory before expiring leases ship (M5b).

Tracked as an M5b prerequisite issue.

Some wording was changed for the public repository.

Consequences

  • This decision is binding for all contributors and agents. Changing it requires a new ADR approved by the maintainer (see ADR 0036).

Generated from decision D-0075 in the project decision ledger. Do not edit by hand; changes go through a new decision.