v0.3.0

[0.3.0] - 2026-08-27

Added

• ltx_wal: bounded SQLite WAL parsing with committed page maps, salt
  censes, torn-tail tolerance, and mid-WAL resume, ported from the pinned
  Celld crate with Go-ported known answers, a differential page-map
  reference, pinned Litestream WAL fixtures, a mutation suite, and a
  native fuzz corpus.
• LTX naming helpers in the core: TXID text, the filename codec, level
  names for both replica layouts, and Litestream-exact path joins.
• ltx_object: the storage-neutral object contract, the filesystem
  backend in the Litestream replica layout with atomic publication, and a
  backend-agnostic conformance suite.
• ltx_s3: the S3 backend with path-style SigV4, prefix-scoped paginated
  listings with start-after seek, object read/write/delete, bucket
  creation, signed conditional writes for first-writer fencing, TLS with
  a custom or system certificate authority, and part-streamed multipart
  upload. Gated against a local MinIO server over both plain HTTP and
  TLS, including the full conformance suite and multipart round trips.
• ltx_replica: the Litestream compaction ladder, restore planning with
  per-level cursors and tail-gap rejection, compaction and retention
  planning, restore-to-path and level-compaction executors over
  caller-owned workspaces, with exact restored-image end-to-end tests.
• ltx_capture: the SQLite capture session with Litestream control
  tables, a checkpoint-blocking read lock, snapshot/incremental
  transitions with mid-WAL resume, DB-file page backfill, snapshot
  fallback on foreign WAL discontinuity, no-checksum L0 publication, and
  two-tier passive checkpointing where session-initiated restarts
  continue with small incrementals. Integration-qualified against host
  SQLite by querying restored images read-only.
• Outbound Litestream v0.5.16 binary interop over a live ltx_capture
  tree: the pinned release binary restores the captured tree to a
  byte-identical image of the checkpointed database.
• A runnable one-shot replication-and-restore example as the consumer
  template, a replication deployment contract (docs/replication.md),
  and the replication roadmap with milestone status.
• Corrected the darwin-arm64 Litestream archive and checksums.txt
  SHA-256 pins in docs/upstream.md against the release manifest.

Changed

• The core remains unchanged; the replication modules are additive and
  keep the core free of filesystem, SQLite, and libc linkage. Only
  ltx_capture declares a SQLite C surface that the host build links.
• S3Client.init returns an error union because TLS certificate
  loading can fail; pre-1.0 source instability applies.