v25.0.0-pre1

What's Changed

• Added support for original field and type naming for C++ language. by @basdl in #2639
• TypeScript dependency cleanups: latest compiler, devDeps, exact input pin, dead artifact removal by @schani in #2915
• Infer date-times only for strict RFC 3339 strings by @schani in #2916
• Document LanguageName and the isLanguageName validation pattern by @schani in #2917
• Bump yaml from 2.8.3 to 2.9.0 by @dependabot[bot] in #2922
• Bump tsx from 4.23.0 to 4.23.1 by @dependabot[bot] in #2921
• Upgrade pako 1.0.6 → 3.0.1 by @schani in #2924
• Finish the Biome migration: working lint scripts, CI format check, drop dead ESLint deps by @schani in #2923
• Support prerelease publishing from release tags by @schani in #2925
• Adopt Biome lint rules by @schani in #2926
• CI: run once-only extras on Node 24; add Node 22 support leg by @schani in #2927
• fix(swift): emit JSONNull hash(into:) by default by @AysajanE in #2928

New Contributors

• @basdl made their first contribution in #2639
• @AysajanE made their first contribution in #2928

Full Changelog: v24.0.2...v25.0.0-pre1

v24.0.2

What's Changed

• README: document esbuild ESM bundling workaround for quicktype-core by @schani in #2912

Full Changelog: v24.0.1...v24.0.2

v24.0.1

What's Changed

• Replace typescript-json-schema fork with upstream, dropping deprecated glob@7/inflight by @schani in #2909
• Fix published .d.ts files breaking strict consumers (skipLibCheck: false) by @schani in #2910
• Revert "Make languageNamed accept display names and extensions again" (#2883) by @schani in #2911
• quicktype-core: ship a dual CJS/ESM build with an "exports" map by @schani in #2908

Full Changelog: v24.0.0...v24.0.1

v24.0.0

quicktype 24.0.0

quicktype 24 modernizes the supported Node.js runtime, fixes language lookup and Windows schema-path regressions, and moves package publishing to GitHub Releases.

Highlights

• Node.js 20 or newer is now required. Development, fixture CI, and publishing use Node.js 24, while the published npm packages are built and tested on both Node.js 20 and 24.
• Native fetch replaces bundled fetch polyfills. URL inputs, remote schema references, and GraphQL introspection now use the runtime's native Fetch API.
• Language lookup is compatible with display names and extensions again. languageNamed() and isLanguageName() once more accept values such as TypeScript, C++, JSON Schema, and kt, case-insensitively. Unknown strings return undefined/false instead of throwing. #2883
• Windows absolute schema paths work correctly. Drive-letter and UNC paths are normalized as file URIs, including schemas that use relative $ref references. #2886

Tooling and release process

• Migrated standalone regression tests to Vitest while retaining the cross-language fixture suite. #2892
• Publishing now starts from stable GitHub Releases tagged vMAJOR.MINOR.PATCH. Release versions are stamped into npm package manifests and the VS Code extension during CI, with checks that prevent non-forward releases and safely skip already-published artifacts on reruns. #2902

Upgrade notes

• Upgrade to Node.js 20 or newer before installing quicktype 24.
• If your application supplied a fetch polyfill only for quicktype, it can now be removed on supported Node.js versions.
• Calls to languageNamed() with arbitrary strings should continue to handle its undefined result for unknown languages.