# iqdb-persist -- Roadmap
> Path from scaffold to a stable 1.0. Hard parts are front-loaded; each phase has hard exit criteria.
>
> **Anti-deferral rule:** no listed hard task moves to a later phase unless this file records the move and the reason.
---
## v0.1.0 -- Scaffold (DONE)
Compiles, CI green, structure correct, no domain logic.
- [x] Manifest, README, CHANGELOG, REPS, license, CI, lints in place.
- [x] API surface sketched in `docs/API.md`.
---
## v0.2.0 -- on-disk format + atomic save/load + CRC32 (THE HARD PART, NOT DEFERRED) (DONE)
Exit criteria:
- [x] Every public item has rustdoc + a runnable example.
- [x] Core invariants property-tested.
---
## v0.3.0 -- WAL append + replay + crash recovery
Exit criteria:
- [ ] New surface tested and benchmarked where it is a hot path.
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## v0.4.0 -- optional zstd/lz4 compression + feature freeze
Exit criteria:
- [ ] No `todo!`/`unimplemented!`. Feature freeze declared.
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## v0.5.0 -- storage-io integration + adversarial/partial-write tests + API freeze
Exit criteria:
- [ ] Public API frozen (recorded here). `cargo audit` + `cargo deny` clean.
---
## v0.6.0 -> v0.9.x -- Alpha / Beta -> RC
- 0.6.x-0.7.x: integrate against real consumers; MINOR-compatible additions only.
- 0.8.x (beta): bug fixes; broader testing; final benchmarks.
- 0.9.x (rc): critical fixes + doc polish.
---
## v1.0.0 -- Stable
- [ ] Definition of Done (DIRECTIVES section 7) satisfied.
- [ ] Public API frozen until 2.0.
- [ ] Release note written; published to crates.io; tag pushed.
---
## Out of scope for 1.0
- The storage substrate itself -- that is `storage-io`.
- Replication/consensus -- distributed phase.