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@jaredwray jaredwray released this 25 Jul 19:21
v6.1.5
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writr@6.1.5 — 2026-07-25

Widens engines.node to allow Node 24+; adds the unpublished writr-rs Rust engine workspace.

Bug Fixes

  • allow Node 24+ in engines.node — ^22.18.0 resolves to >=22.18.0 <23.0.0, excluding the Node versions writr is tested on, so installs under engine-strict=true aborted with ERR_PNPM_UNSUPPORTED_ENGINE (cf8efa4, #488)

Internal

  • writr-rs: byte-exact Rust markdown engine — Cargo workspace with a commonmark-exact core, GFM alerts, toc/emoji/slug transforms, raw-HTML replay over html5ever, a highlight.js 11.11.1 engine port, and a KaTeX 0.16.45 bridge (097608b, 5997924, 684b143, 0ddec57, fc83338, f425e5f, #487)
  • writr-rs: napi bindings (native + wasm32-wasip1 + browser ESM) with golden-harness parity across all 2,041 goldens on seven profiles, plus packed renderBatchBuffer batch rendering (a51b7d6, bacd8d9, 126ca04, #487)
  • writr-rs: optimization pass — streaming serializer, copy-free hljs hot loop, 40-byte u32 parser events, wasm-opt -O3 + SIMD128, opt-in PGO build (87e09f0, 708a55e, 06c0fa4, 758e6ef, ef79f3c, a77fe00, f97d743, #487)
  • add build:rs, build:rs:wasm, and build:rs:pgo scripts plus benchmark/benchmark-rust.ts (#487)
  • add .github/workflows/writr-rs.yml — fmt, clippy -D warnings, tests, coverage gate, codegen-freshness check, harness parity, native build matrix (b676fde, e68b3c4, edaa457, b19791f, #487)
  • refresh performance numbers after the M10 optimization pass (e88ce86, #487)
  • pin browser install to the pinned playwright-core (f70fa36, #488)

Notes

  • The published package's runtime is unchanged in this release. src/** has zero changes since v6.1.4, so dist/ builds byte-identical to 6.1.4. writr-rs/ is not part of the npm tarball (files: ["dist", "README.md", "LICENSE"]) — it is built from source via pnpm build:rs. The only tarball-affecting change is the engines.node widening, which is why this is a patch rather than a minor.

Contributors

  • @jaredwray (23 — writr-rs commits agent-authored)

Full List of Changes

  • writr-rs: byte-exact Rust markdown engine (native + wasm + browser) with multi-core rendering by @jaredwray in #487
  • root - fix: allow Node 24+ in engines.node by @jaredwray in #488

Full diff: v6.1.4...v6.1.5

Contributors

jaredwray
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