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Node.js

v5 requires Node.js v24.0.0 or later. Every published package sets "engines": { "node": ">=24" }.

v4 documented v18.18.0 or later. v4 packages did not set an engines field.

node -v
# Must be v24.0.0 or later
nvm install 24
nvm use 24
# v4 CI
node-version: [18, 20]

# v5 CI
node-version: [24]

Polyfills​

Internal replacements (add the packages yourself only if your app imported them transitively from Markuplint):

  • uuid → crypto.randomUUID()
  • @ungap/structured-clone → structuredClone()

TypeScript target​

Shared compiler options use "target": "ES2022". Custom rules and parsers that compile against Markuplint's TypeScript config need a runtime that supports ES2022.