DSH v0.2.1-alpha.4: Custom Index Sources (Oct 16, 2026)

v0.2.1-alpha.4: Reasoning Levels for Custom Models in the UI, Custom Plugin Index Sources — and an engines.dsh Compatibility Change.

v0.2.1-alpha.3 closed this site’s release coverage on October 14. Almost to the hour, the 0.2.1 line moved again: v0.2.1-alpha.4 published 2026-10-15 13:40 UTC with the Pre-release flag, about 24 hours after alpha.3.

Two features, both aimed at the configuration file

The release’s New Features section carries exactly two items, and both move work out of hand-edited configuration. Reasoning levels for individual custom API models become configurable in the UI — the notes’ own framing is that the configuration file no longer needs manual edits (by @LegGasai). And plugins can be discovered and installed from custom plugin index sources (by @turtle1999) — an index-source concept the notes name without further definition in these sections.

The one change plugin authors must read

The Other Changes section has a single item: third-party plugin compatibility prioritizes engines.dsh when declared and otherwise uses the existing rules. The notes’ request is directed at plugin authors — check that the declared range covers the DSH versions you support. End users are not asked to migrate anything.

The fix list

Five fixes make up the Bug Fixes section. Input handling at the boundary between a command and its arguments no longer glitches: commands can be selected and deleted as a whole, and restored after undo or a page reload. Office file delivery stops referencing deleted preview images in replies and cuts unnecessary tool searches and extra checks after PDF export. The Developer Tools panel opens without requiring a page reload after being enabled. On Linux, repeated checks before launching a command are reduced — lower startup overhead and better compatibility with older systemd environments, per the notes. And failed commands now present useful status information, closing the silent-failure case.

Four contributors share the eight listed changes two items each — LegGasai (input fix, reasoning-level configuration), yudshj (Office delivery, failed-command status), imccyu (Developer Tools, Linux startup) and turtle1999 (custom index sources, engines.dsh). The full bilingual notes are on the release page linked above.

Two features, both aimed at the configuration file

The one change plugin authors must read

The fix list

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