RELEASES.md — sigil-dsp

1# sigil-dsp Releases

3## v0.3.0 — 2026-06-25

5### Changed

6- **Toolchain requirement raised to Sigil 0.17.** The package now declares

7 `sigil: "^0.17"` and pins `sigil-stdlib` to `^0.17`. Sigil 0.17 makes the

8 `sigil:` field mandatory and ties the native codegen runtime header

9 (`sigil-lib`) to that field, so building against the 0.17 compiler requires

10 this bump. Consumers caret-pinning sigil-dsp must move to the 0.17 line,

11 which is why this is a minor release rather than a patch.

13### Added

14- `sigil-test` and `sigil-test-runner` dev-dependencies so `sigil test` can

15 build a native test harness under Sigil 0.17.

17## v0.2.0 — 2026-04-18

19### Added

20- **Karplus-Strong plucked string** primitive exposed through `(sigil dsp osc)`:

21 `make-ks freq decay excite-gain`, `ks-compute`, `ks-trigger!`,

22 `ks-set-freq!`, `ks-set-decay!`, `ks-set-excite-gain!`.

24 Feedback delay-line physical model with a 2-tap averaging lowpass in

25 the feedback path. Per-trip gain derived from the requested -60 dB

26 decay time. Delay line is sized for the lowest supported fundamental

27 (20 Hz) at creation, so retuning upward via `ks-set-freq!` is a

28 pointer trick, not a realloc. Rising-edge gate retriggers

29 excitation — callers driving a continuous gate can invoke

30 `ks-trigger!` manually per note.

32 Exposed struct layout (`src/c/ks.h`) stays public so downstream

33 render loops (motif) can pick up the node as a graph primitive.

35## v0.1.0 — 2026-03-26

37Initial release. SoundPipe-backed oscillators, filters, envelopes,

38effects, noise generators, and utility modules exposed through

39`(sigil dsp {core,osc,filter,env,fx,noise,util})`.