v4.0.0-beta.3

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🩹 Fixes

• Disable expandFileReferences by default (#303)

📖 Documentation

• Add migration section (85ba131)

❤️ Contributors

• Pooya Parsa (@pi0)
• Mila (@locksten)

v4.0.0-beta.2

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📦 Package Improvements

c12 install size is now down to 380kB from 3.44MB (20 deps to 7 deps).

Loading TypeScript files is significantly faster (on cold cache) — simple TS config loads ~2.5x faster (bench).

🚀 Migration

• If you need extends feature with remote/git source, install giget as a peer dependency (docs)
• If you are using watchConfig, install chokidar as a peer dependency (docs).
• If you need legacy TypeScript support (mixed ESM/CJS, no import extensions, etc.), install jiti as a peer dependency (c12 automatically falls back) or provide a custom import config (docs).
• Dotenv parsing now uses native runtime features (see #296). You might need to add dotenv as a peer dependency only for legacy/Deno support.

Other changes

🚀 Enhancements

• Support expanding env with _FILE references (#297) (docs)

🔥 Performance

• Optional jiti loader (#295)
• Use native dotenv parser (#296)

📦 Build

• Make chokidar optional peer dependency (8b7c6a2)

🏡 Chore

• Use oxlint and oxfmt (7874678)

❤️ Contributors

• Pooya Parsa (@pi0)
• Volodymyr Stelmashchuk (@VovaStelmashchuk)

v4.0.0-beta.1

See https://github.com/unjs/c12/releases/tag/v4.0.0-beta.2

v3.3.3

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📦 Build

• Update chokidar to 5.x (0dcf338)

v3.3.2

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📖 Documentation

• Fix typo in globalRc option (#281)

📦 Build

• Switch to obuild (rolldown) (9addbb1)
• Relax magicast peer dependency range (eae6be1)

❤️ Contributors

• Pooya Parsa (@pi0)
• Jan T. Sott (@idleberg)

v3.3.1

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🩹 Fixes

• Extend with explicit extensions only (#276)

❤️ Contributors

• Pooya Parsa (@pi0)
• Ígor Jacaúna (@igorjacauna)

v3.3.0

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🚀 Enhancements

• Support loading config with array exports (#272)
• Allow extends without extension (#268)

🩹 Fixes

• loadDotenv: cwd is optional (#273)

📖 Documentation

• Improve dotenv section with multiple files example (#270)

❤️ Contributors

• Pooya Parsa (@pi0)
• Carson (@carson2222)
• Igal Klebanov (@igalklebanov)
• @devbro1

v3.2.0

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🚀 Enhancements

• Support multiple dotenv files (#256)
• Support context for function configs (#258)
• Support configFileRequired (#241)

📦 Deps

• Update dotenv to v17 (9044e56)

🏡 Chore

• Add prisma to the "used by" list (#255)

❤️ Contributors

• Kanon (@ysknsid25)
• Pooya Parsa (@pi0)
• SilverSnow (@Jiiiin)
• Giorgio Boa (@gioboa)
• Alberto Schiabel (@jkomyno)

v3.1.0

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🚀 Enhancements

• Pass raw configs to function sources (#253)

❤️ Contributors

• Pooya Parsa (@pi0)
• @iiio2

v3.0.4

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🩹 Fixes

• Handle watcher reload errors (#247)