# Omnigraph v0.6.1

v0.6.1 focuses on operational polish after v0.6.0: stored-query registries, safer branch cleanup, more complete release artifacts, and a Lance blob-compaction workaround.

## Highlights

- **Stored-query registries.** `omnigraph.yaml` can declare curated `queries:` blocks per graph. Servers load and type-check them at startup, `omnigraph queries validate` checks them offline, `omnigraph queries list` shows exposed queries and typed params, `GET /queries` exposes a typed catalog, and `POST /queries/{name}` invokes a stored query without accepting ad hoc `.gq` source from the client.
- **Stored-query policy gate.** New Cedar action `invoke_query` gates the stored-query invocation surface. Stored mutations are double-gated: `invoke_query` to reach the stored query and `change` for the actual write.
- **Safer branch deletion.** `branch_delete` now treats the manifest as the authority, flips branch visibility atomically, and reclaims per-table/commit-graph forks as derived state. If best-effort reclaim is interrupted, `cleanup` reconciles orphaned forks; reusing a branch name before cleanup reports an actionable error.
- **Legacy `__run__` cleanup (MR-770).** *(Correction: this item shipped in [v0.6.2](v0.6.2.md), not v0.6.1 — the v0.6.1 notes over-claimed it. At the v0.6.1 tag the `__run__` branch-name guard and `run_registry.rs` were still present and no v2→v3 sweep migration existed.)* The guard removal and the one-time v2→v3 `__manifest` migration that sweeps stale `__run__*` staging branches on first read-write open are described in the v0.6.2 release notes.
- **Blob-safe optimize.** `omnigraph optimize` skips tables with `Blob` properties instead of failing the whole sweep on Lance's blob-v2 compaction decode bug. Skips are visible in human output, `--json` as `skipped`, `TableOptimizeStats.skipped`, and logs; non-blob tables still compact normally.
- **Deployment improvements.** The container entrypoint now composes `OMNIGRAPH_TARGET_URI` with `OMNIGRAPH_CONFIG`, so operators can keep the graph URI in env while loading policy/query config from a mounted file. The local RustFS bootstrap pins RustFS beta.3 and allows the current insecure local-dev default credentials.
- **Windows release support.** Tagged and edge releases now publish Windows x86_64 archives containing `omnigraph.exe` and `omnigraph-server.exe`, with a PowerShell installer and Windows install docs.
- **Release tooling.** Homebrew formula generation was tightened to produce audit-clean formulas.

## Compatibility Notes

- A graph selected by name (`--target` or `server.graph`) now uses `graphs.<name>.policy` and `graphs.<name>.queries`. Top-level `policy` / `queries` blocks are only for anonymous bare-URI single-graph mode; using them with a named graph now fails loudly with migration guidance.
- `mcp.expose` defaults to `true` for stored-query registry entries. Set `mcp: { expose: false }` for service-only queries that should not appear in the catalog.
- `invoke_query` is graph-scoped, not branch-scoped. Branch/snapshot access remains enforced by the inner `read` / `change` gate.
- **Legacy `__run__` migration.** *(Correction: deferred to [v0.6.2](v0.6.2.md).)* The automatic v2→v3 `__manifest` stamp migration that sweeps stale `__run__*` branches on first read-write open ships in v0.6.2, not v0.6.1; a v0.6.1 binary does not perform it. See the v0.6.2 notes for the migration behavior and the read-only caveat.
- Blob tables are not compacted until the upstream Lance fix lands, so fragment count and deleted-row space on blob tables are not reclaimed by `optimize`. Reads, writes, and query results are unaffected; no on-disk migration is required.
- `TableOptimizeStats` is now `#[non_exhaustive]` and gains a `skipped: Option<SkipReason>` field (so does the new `SkipReason` enum). This is a source-level change only for downstream code that built this returned result struct by literal — rare, since it is produced by `optimize` and consumed by reading its fields; field access is unaffected, and `#[non_exhaustive]` keeps future additions non-breaking.

## Docs And Cleanup

- Public docs were updated for stored queries, policy, server routes, deployment, Windows installation, branch deletion, maintenance, and the `runs` docs rename to `writes`.
- README copy and release documentation were refreshed; older release notes had small typo/wording fixes.
