box/drills/0.9.0.md

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# box 0.9.0 — release drill
**WAIVED. No drill was run for this release.**
Waived by the maintainer (@danmt) on 2026-07-21. This file exists because the
gate requires a *record*, not a passing result — so a skip is a line in a diff
somebody reviewed, rather than the silence that let 0.7.0, 0.8.0 and every
release before them ship unproven.
## Why
The drill harness is not in a state to produce a trustworthy run. box has the
only real harness in the family (`drill/drill.sh`, ~85 probes), but the
procedure around it — standing up the substrate, pinning the release
candidates, capturing the result — was undocumented and assembled by hand.
rig and cast have no harness at all. A run improvised under those conditions
produces numbers nobody should rely on, and `drills/` is worth nothing if it
fills with records like that.
Deferred deliberately, and tracked: #155.
## What this release therefore does NOT prove
Stated plainly so it is not rediscovered as a surprise:
- **The VM trust boundary.** `ci.yml` says it in its own words: *"What
container mode canNOT validate is the VM trust boundary itself; that stays a
real-hardware ritual."* That is exactly the delta a release drill adds, and
it is exactly what is missing here.
- **The isolation contract on real hardware** — egress, the sibling drop, DNS
enumeration, IPv6 off, inbound drop — as measured by `drill/drill.sh` against
real VMs rather than containers.
- **The combination users receive.** A released box still resolves `RIG_REF` to
`main` (#150), so even a passing drill would have proven a pair that drifts
the moment rig's main moves.
## What CI did prove on this tree
Not nothing, and worth recording so the gap is precise rather than total:
| Job | Result |
|---|---|
| `rehearsal` — multi-user tier on a real Incus | pass |
| `scope` | pass |
| `reconcile` | pass |
| `test/cli.sh` | 653 passed, 0 failed |
| `test/release.sh` | 173 passed, 0 failed |
| `test/labels-reconcile.sh` | 72 passed, 0 failed |
| `shellcheck -x bin/* **/*.sh` | clean |
The tier's semantics are covered. The boundary is not.
## The commitment
The next release carries a real drill record at `drills/<version>.md` — what
ran, on what host, the pinned refs and SHAs, the numbers, and what failed. A
failed drill is a valid record; another waiver is not. Tracked in #155.