v0.9.0

Features

• backup: support configurable backup path (3e58619)
• sync: show verbose metadata scan progress (e0edd52)
• embeddings: select backends by capability (2b0e389)
• pdf: isolate layout extraction in spawned worker (b171b8d)
• embeddings: isolate accelerator models in spawned workers (2ff0333)
• embeddings: schedule batches by token budget (28540d5)
• embeddings: define accelerator worker protocol (66fea01)
• benchmarks: add accelerator qualification baseline (629b21f)
• models: add gemma-embed (EmbeddingGemma 300M) document model (264956d)
• embeddings: let --gpu authorize CoreML and warn when a run is killed (448e20d)
• models: add qwen3-embed and deprecate stella (97f5bde)

Bug Fixes

• plugin: validate direct arc command execution (71e311a)
• harden backup, CoreML, and sync edge cases (a00c57b)
• backup: load standalone config and report progress (226c646)
• pdf: finalize worker exit code after reaping (bacf702)
• sync: validate recovered manifests (7d0988b)
• sync: publish empty file manifests (f96fa3c)
• sync: rebuild manifests after rename (0ff1fd5)
• sync: track zero-chunk files (568eeca)
• sync: recover missing file manifests (4fda3fa)
• sync: surface manifest scan failures (7273aa0)
• sync: make file manifests resilient (89ede1a)
• build: package accelerator result schema (60b0327)
• embeddings: retry retained worker containment (74f8812)
• benchmarks: validate results at runtime boundaries (dbe0156)
• embeddings: enforce worker containment and token budgets (649e947)
• benchmarks: enforce accelerator reliability evidence (2820c6e)
• pdf: verify layout worker reaping (4c73f9b)
• embeddings: harden accelerator runtime boundaries (2d75e0c)
• pdf: make layout selection truthful (d00731d)
• build: restore stable tree-sitter versions (e39ed96)
• build: exclude crashing tree-sitter language pack (ec77bdd)
• sync: improve indexing eta accuracy (3ed87bf)
• pdf: parse documents once during extraction (4be6178)
• cli: report stopped container services (85b0baf)
• harden MeiliSearch task waits and FastEmbed cache self-healing (6af6d84)
• deps: require transformers 4.51+ for qwen3 and guard optional-dep test (9f98338)
• deps: lift transformers cap to <5.0 via DynamicCache shim (0518fc3)
• deploy: use 127.0.0.1 in MeiliSearch healthcheck (d68da2b)

Performance

• indexing: eliminate redundant sync scans (d67895a)
• sync: harden manifest lookups (9ce1fb7)
• sync: replace chunk scans with file manifests (221089e)
• embeddings: evaluate CoreML shape buckets (51a4519)
• embeddings: qualify CUDA worker conservatively (6093a2f)
• embeddings: qualify MPS worker conservatively (3d8ad49)

Documentation

• acceleration: align guidance with capability evidence (e8ada2e)
• embeddings: plan isolated accelerator architecture (25c7a51)
• models: add speed/quality model guidance and retire stale stella references (bd7364a)

Tests

• embeddings: seed CPU fallback model cache (346079b)

Chores

• release: 0.9.0 (fcac310)
• deps: bump the actions group across 1 directory with 3 updates (0c94ba9)
• deps: commit uv.lock for reproducible dev environments (dd2b1bf)
• deps: raise dependency floors for indexing performance (471ac43)

Other

• research(mlx): record offline embedding feasibility decision (89ede65)

Full Changelog: v0.8.3...v0.9.0