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14065 :: RocheDB v0.6.0 released

• puffball1567 (orginal) [2026-07-17T19:35:49+02:00] view original

  I released RocheDB v0.6.0.

  Release: https://github.com/puffball1567/rochedb/releases/tag/v0.6.0

  Repository: https://github.com/puffball1567/rochedb

  RocheDB is a ring-oriented NoSQL document and vector database written in Nim.

  v0.6.0 focuses on making RocheDB’s data-locality idea more measurable and less narrative-only.

  Main changes:

  • typed RocheFilterBuilder helpers for safer read filters
  • topology remapping primitives:
    • explicit arc tables
    • weighted arcs
    • deterministic virtual arcs
    • topology validation
    • remapFraction
  • locality validation workloads for:
    • random writes
    • delete-heavy patterns
    • backfills
    • hot/cold data
    • interleaved writes
    • compaction before/after checks
  • invariant checks where the same logical ring query should return the same ID/payload set before and after compaction
  • CLI connection config loading with --config=FILE and ROCHE_CONFIG
  • use-case recipes for list/detail screens, membership records, inventory-style locks, webhook idempotency, SaaS tenant isolation, stellar neighborhood reads, and RAG corpus layout

  The locality validation part is the main thing in this release.

  RocheDB’s thesis is that meaningful placement can reduce unnecessary reads, memory pressure, transfer, reranking, and downstream AI/RAG context work. But locality should not just be a story. It should survive less friendly workloads too.

  So v0.6.0 adds workloads that mutate, delete, backfill, compact, and re-read the same logical rings. The check is simple: the logical result set should stay stable, while RocheDB reports locality/layout metrics such as candidate count, disk span runs, fragmented rings, and read latency.

  Example demo command:

  examples/locality_layout_demo.sh

  You can also run specific workloads:

  WORKLOAD=random examples/locality_layout_demo.sh WORKLOAD=delete-heavy examples/locality_layout_demo.sh WORKLOAD=backfill-heavy examples/locality_layout_demo.sh WORKLOAD=hot-cold examples/locality_layout_demo.sh WORKLOAD=interleaved examples/locality_layout_demo.sh

  RocheDB is still a technical preview. I am not presenting it as a production replacement for Redis, PostgreSQL, MongoDB, Apache Arrow, or a dedicated vector database.

  The narrower claim is that RocheDB is exploring a database model where application-level locality is part of placement and retrieval, and where that locality can be measured and tested.

  I also wrote a dev.to post about this release:

  https://dev.to/

  I will update the exact post URL after publishing.

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