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Migrating to v0.10.x

Chunker options merging

Chunker option merging uses dataclasses.replace() instead of asdict() so callable fields (e.g. otel_tracer, semantic_embed_fn) are not deep-copied.

If you passed custom callables through ChunkOptions, they should now round-trip reliably; if you relied on accidental deep-copy side effects (unlikely), treat this as a bugfix.

New infrastructure APIs (additive)

  • ChunkStore for SQLite-backed incremental indexing
  • Chunker.stream_upsert() for batched vector-export rows
  • omnichunk serve --mcp for JSON-RPC tools
  • ChunkOptions.otel_tracer for optional tracing

Breaking changes

None expected for core chunking callers; new features are opt-in.