v0.47.1

v0.47.1 — expose history-retention API on the node addon

v0.47.0 — CDC, backup, PITR, prepared statements, cross-request HTTP sessions, FK final-write-set, metrics and audit log

What's new in v0.47.0

Server (mongreldb-server)

• Cross-request HTTP sessions for interactive transactions — keep a transaction open across multiple HTTP calls via session-bound TxnState.
• Prepared-statement REST API over HTTP sessions — prepare, execute, deallocate endpoints; bind values across requests.
• Metrics, audit log, and Arrow streaming — /metrics, /audit, Arrow JSON/streaming over /sql.
• Idempotent create-table — accept default_value as alias for default_expr in /kit/create_table.

Core (mongreldb-core)

• Foreign-key final-write-set enforcement — core FK final-write-set integrates referential integrity with the WAL group-commit path.
• CDC, backup, and PITR — change-data-capture stream + cold/offline backups + point-in-time restore with additional test coverage.

Tooling

• Cross-engine benchmark matrix refreshed (34 language clients documented).
• rustfmt applied across mongreldb-core and mongreldb-server.
• Code review pass: address Codex peer-review findings across the shipped features.

Stats since v0.46.2

• 954 tests passing, 1 ignored.
• cargo fmt --check, cargo clippy --workspace --all-targets --all-features -- -D warnings, and cargo test --workspace --all-features all green.

v0.46.2

Bug Fixes

• server: invalidate idempotency cache on drop_table — when a table is dropped and recreated, cached idempotency entries became stale and replays silently reported success without writing (data-loss bug). Fix clears all idempotency entries on table drop.

Full Changelog: v0.46.1...v0.46.2

v0.46.1

Full Changelog: v0.46.0...v0.46.1

v0.46.0

Full Changelog: v0.45.0...v0.46.0

v0.45.0

Maintenance

• CI: GitHub Actions on Node 24 runtime. All workflow steps now run on the Node 24 action runtime, clearing the Node 20 deprecation warnings.
  • actions/checkout v5 -> v7
  • actions/setup-node v4 -> v6
  • softprops/action-gh-release v2 -> v3
  • docker/setup-qemu-action, setup-buildx-action, login-action v3 -> v4
  • docker/metadata-action v5 -> v6
  • docker/build-push-action v6 -> v7
  • Swatinem/rust-cache pinned at v2.9.1 (already node24)

Server binaries (linux x64/musl/arm64, darwin arm64/universal) and the ghcr.io/visorcraft/mongreldb-server image are attached/uploaded by CI shortly.

Full changelog: v0.44.1...v0.45.0

v0.44.1

What changed

OpenOptions and lock_timeout_ms for Database::open_with_options

New opt-in knob for cross-process lock acquisition. Default 0 keeps the historical fail-fast behavior; pass OpenOptions { lock_timeout_ms: 5_000 } for SQLite-style busy_timeout semantics with 1ms, then 10ms, then 50ms backoff against a hard deadline. Lets multiple writers commit cleanly against the same database instead of the second opener seeing locked by another process.

create* constructors now refuse to clobber an existing database

Database::create, create_encrypted, create_with_key, create_with_credentials, and create_encrypted_with_credentials now return MongrelError::InvalidArgument("database already exists at <path>; use Database::open() to open it, or remove the directory first") when the on-disk CATALOG file is present. Previously these would silently overwrite a populated directory, destroying the catalog and any encryption keys. Use Database::open* to open an existing database.

Lock retry respects error class

The cross-process lock retry loop now only treats WouldBlock as retryable. Other I/O errors (PermissionDenied, NotFound, etc.) bubble up immediately instead of being treated as "locked, try again" and looping or hiding the real problem.

Tests

• New crates/mongreldb-core/tests/cross_process_lock.rs: 5 tests covering fail-fast, retry-until-acquired, retry-with-no-timeout, retry-after-engine-holder-releases, and a 4-writer subprocess harness that commits 100 rows cleanly with the new lock_timeout_ms knob.
• New database_basic.rs cases for the reject_existing_database guard across plain, encrypted, and encrypted + credentialed paths.
• Writer subprocess PK fixed from idx to writer_id * rows + idx so parallel writers no longer collide on the primary key.

Misc

• OpenOptions now derives Default (was a hand-rolled impl Default).
• fail_fast_default_rejects_concurrent_open timing slack bumped 500ms to 2s to stop CI flake on slow machines.

Full Changelog: v0.44.0...v0.44.1