RocheDB v0.2.0 Technical Preview

RocheDB v0.2.0 Technical Preview

RocheDB v0.2.0 expands the ring/galaxy-oriented prototype with a stronger
operational surface: Universe sync, recovery-oriented topology configuration,
Docker Compose demos, CLI workflows, and GitHub Pages documentation.

This is still a technical preview / research OSS release. Do not present it as
a production replacement for Redis, PostgreSQL, MongoDB, Apache Arrow, or a
mature vector database. The defensible claim remains narrower: RocheDB can
reduce working-set size and downstream retrieval input when data is placed in
meaningful rings, while the implementation is gaining the operational checks
needed for broader evaluation.

Highlights

• Universe sync outbox with WAL-backed events, idempotent apply, ack/prune,
  local data-dir sync, and remote --peers delivery through UAPPLY.
• Remote sync observability through universe-status --peers --metrics.
• Restart and duplicate-delivery smoke coverage for remote universe sync.
• Recovery topology configuration using universes, galaxies, local/remote
  archive placement, auth references, priorities, snapshot sequence checks, and
  readonly mirrors.
• Docker Compose demos for a single galaxy, a three-node galaxy, and a
  local/remote universe-shaped topology.
• bin/roche CLI CRUD workflows, ring list/count, atlas, and a minimal
  interactive shell.
• GitHub Pages documentation structure with public API, config, CLI, topology,
  universe sync, protocol compatibility, cloud metrics, and threat model pages.
• Wire/client errors now surface as user-facing CLI errors instead of assertion
  defects for normal operational failures such as failed authentication.

Validation Run

The v0.2 pre-release verification pass should include:

• scripts/test_core.sh
• scripts/test_all_smoke.sh
• scripts/cli_crud_smoke.sh
• scripts/universe_sync_failure_smoke.sh
• scripts/universe_sync_remote_smoke.sh
• Docker Compose demo checks in examples/compose/README.md
• nimble check
• Markdown link checks for README and docs

Known Gaps

• TLS is not implemented; do not expose roched directly on untrusted
  networks.
• Cluster membership is static.
• node0 remains the cluster transaction landing coordinator.
• Cluster coordinator redundancy, dynamic membership, and epoch migration are
  not implemented.
• Universe sync is durable eventual sync, not immediate global serializability.
• Server-side warp scheduling is not implemented.
• Package publication workflows are not complete.
• WASM browser support, React Native local-state support, Unity assets, Unreal
  plugins, Kubernetes manifests, and multi-VM / multi-AZ benchmarks are later
  roadmap items.

Links

• README: README.md
• Status / roadmap: docs/rochedb-status.md
• Public API: docs/public-api.md
• Configuration reference: docs/config-reference.md
• CLI reference: docs/cli-reference.md
• Universe sync: docs/universe-sync.md
• Topology examples: docs/topology-examples.md
• Benchmarks: docs/rochedb-bench.md
• Release checklist: docs/release-checklist.md
• Driver installation guide: docs/driver-installation.md
• Threat model: docs/threat-model.md
• Third-party notices: THIRD_PARTY_NOTICES.md