mp4decrypt copied a track whose first sinf has no tenc through encrypted; pass its key by track ID and retry with shaka on a passthrough. Shaka fails only on a non-zero exit now.
Vaults.add_keys and kv add skip null content keys instead of failing the batch; is_null_key moves to core.vault. A manifest snapshot restore has one 32 MiB inflate budget. Tests reset the speed limiter and config between runs.
Cache proxy provider catalogues (10 min), reuse vaults and CDMs across one batch licence call, and cache the health update check, /api/services entries and parsed service config.yaml.
Set muxing.track_names to native to name an unnamed track in its own language (中文（繁體）, Português (Portugal)) in place of English. The same script and region rules apply. --list, the muxed names and the REST API track_name follow the option. A test fixture resets the muxing options, so a local unshackle.yaml cannot change test results.
Test servers shut down without the 0.5s poll wait, unit tests refuse non-loopback lookups, and three load-sensitive tests are steadied. Pushes to dev test Python 3.11 only; the docs job builds with uv.
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