chore(deps): update dependency tsdown to ^0.22.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
tsdown (source)	^0.21.10 → ^0.22.1

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Release Notes

rolldown/tsdown (tsdown)

v0.22.1

Compare Source

   🚀 Features

• dts: Add deps.dts option to override dependency bundling for declaration files  -  by @​sxzz (881bf)

   🐞 Bug Fixes

• Improve error handling for unsupported TypeScript syntax on Node.js  -  by @​sxzz (b93db)
• Add extra space for emoji rendering in Windows Terminal  -  by @​sxzz (925cc)
• unbundle: Add shims support for unbundled builds  -  by @​sxzz (fc991)

    View changes on GitHub

v0.22.0

Compare Source

   🚨 Breaking Changes

• Drop Node.js < 22.18.0 support, make unrun optional, add tsx config loader  -  by @​sxzz (a1042)
• dts: Auto-enable dts when tsconfig declaration is true  -  by @​sxzz in #​872 (085f0)
• publint: Use pkg from publint results, require publint v0.3.8+  -  by @​sxzz (413bb)

   🚀 Features

• Upgrade rolldown to 1.0.0-rc.18  -  by @​sxzz (66085)
• Upgrade rolldown to v1.0.0  -  by @​sxzz (fabba)
• exports: Auto-enable bin detection by default  -  by @​sxzz in #​873 (abda9)

   🐞 Bug Fixes

• Explicitly drop node 23 support  -  by @​sxzz (85e65)
• debug: Enhance debug logging for pack tarball  -  by @​sxzz and Copilot (5de04)
• exports: Detect types fields nested in conditional exports  -  by @​sxzz (82fa1)
• pkg: Fix duplicate configuration warning logic  -  by @​ho991217 and @​sxzz in #​935 (6a0d9)

🔄 Migration Guide

Node.js version

Upgrade to Node.js 22.18.0 or later. Bun and Deno remain supported (experimental).

unrun is no longer bundled

If your environment relies on the unrun config loader (i.e. you're on a Node version without native TypeScript support and use the default auto loader), install it manually:

npm i -D unrun

# or, alternatively, the new tsx loader:
npm i -D tsx

If you use Node.js 22.18.0+ with native TypeScript support, no change is needed — the auto loader will pick native.

dts auto-enabled from tsconfig

If your tsconfig.json has compilerOptions.declaration: true but you do not want tsdown to emit .d.ts files, opt out explicitly:

// tsdown.config.ts
export default defineConfig({
  dts: false,
})

exports.bin auto-detection

Any entry chunk containing a shebang (e.g. #!/usr/bin/env node) now causes tsdown to write a bin field in package.json automatically. The semantics differ slightly from explicit bin: true:

Value	Single shebang	Multiple shebangs	No shebangs
(unset)	Auto-set bin	Warn, skip	Silent
true	Auto-set bin	Throw	Warn
false	No bin	No bin	No bin

To opt out entirely:

export default defineConfig({
  exports: { bin: false },
})

Links

• tsdown Documentation
• v0.22.0-beta.1 Release
• v0.22.0-beta.2 Release
• v0.22.0-beta.3 Release
• Full diff from v0.21.10

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