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Lattice AI v4.2.0

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@TaeSooPark-PTS TaeSooPark-PTS released this 12 Jun 12:22
v4.2.0
90ada7f

Lattice AI v4.2.0 — Brain Core & Storage Rebuild

Status: release. This release builds from main after v4.1.0. It creates a
GitHub Release with validated artifacts only; it does not publish packages or
deploy to any external registry.

v4.2.0 extracts the backend Digital Brain boundary into the independent
lattice_brain Python package and introduces a pluggable storage layer while
preserving v4.1.0 APIs, data, frontend behavior, and local-first defaults.

Included

  • lattice_brain Brain Core import package.
  • BrainCore runtime facade used by FastAPI.
  • StorageEngine ABC.
  • SQLiteEngine default storage engine.
  • Honest sqlite-vec capability detection with brute-force cosine fallback.
  • PostgresEngine opt-in pgvector scale target.
  • Explicit-consent Docker Postgres setup wizard.
  • SQLite to Postgres migration planner/runner.
  • Live Docker-backed pgvector migration validation, including rowid-less FTS5
    shadow tables and idempotent reruns.
  • Encrypted .latticebrain archive create/restore support.
  • API-backed System storage status, Docker setup, and migration-plan controls.
  • Generated OpenAPI client updated to 313 paths.

Preserved

  • Existing FastAPI API contracts.
  • Existing v4.1.0 SQLite user data.
  • Knowledge Graph, memory, context, ingestion, agent runtime, workflow runtime,
    skills/hooks/plugins, portability, signed bundles, and Brain Network behavior.
  • React/Vite/Tauri frontend and desktop architecture.
  • SQLite as the default local-first storage engine.

Safety Rules

  • Postgres is never required.
  • Docker never auto-starts without explicit user consent.
  • Explicit Postgres selection fails honestly if DSN or dependencies are missing.
  • No startup migration rewrites or deletes user data.
  • No external package registry publish step is part of this release.

Expected Artifacts

  • dist/ltcai-4.2.0-py3-none-any.whl
  • dist/ltcai-4.2.0.tar.gz
  • dist/ltcai-4.2.0.vsix
  • ltcai-4.2.0.tgz

Validation Scope

  • Python compile check.
  • Ruff.
  • Unit tests.
  • Live integration tests.
  • Live Docker/Postgres pgvector migration test.
  • Migration idempotence and dry-run tests.
  • SQLite backup/restore and encrypted archive tests.
  • Vector search tests.
  • Storage fallback tests.
  • Frontend lint.
  • TypeScript build.
  • Tauri cargo check.
  • Release artifact validation.
  • Wheel smoke test.
  • npm pack dry-run.

External Registries

No PyPI, npm Registry, VS Code Marketplace, Open VSX, or other external
registry publish step is part of this release.

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