🚀 🙌 First major version in almost 4 years! 🚀 🤯 Thanks everybody for having the patience. Hopefully this version brings many improvements to your developer experience!

Breaking changes 💥

• Minimum supported Node.js version is now 14+
• Removed deprecated APIs - #993
  • Import paths express-validator/check and express-validator/filter
  • Sanitization-only middlewares (e.g. sanitize(), sanitizeBody(), etc)
  • Deprecated TypeScript types (ValidationParamSchema and ValidationSchema)
• isObject() validator now assumes options.strict = true by default
• Validation errors changed shape
  • Field validation errors param property has been renamed to path
  • oneOf() validation errors no longer have a param: '_error' property
• (TypeScript only) The ValidationError type is now a discriminated union, it might be necessary to use switch or if statements to check that you're dealing with the type that you want to debug/format
• oneOf() signature changed: from oneOf(chains, message) to oneOf(chains, options: { message, errorType })
• oneOf() default error structure now groups errors by their... validation group!, instead of in a flat list

Checkout the migration guide for examples on how to work around some of these: https://express-validator.github.io/docs/migration-v6-to-v7

New features ✨

• Added validation for no unknown fields - #558, #578, #612, #1148, #809, #927, #1204
• Added globstars (deep wildcard) support - #790, #1137, #1216
• Added support for multiple custom validators/sanitizers in checkSchema() - #552, #1180
• Added request-level bail - #1100, #1214
• Added a ExpressValidator class which allows adding "persistent" custom validators, sanitizers, and options - #1077, #1079, #1209
• Added oneOf() support to .if() - #1170
• Added new error types to oneOf() - #956, #1022

Bug fixes 🐛

• Validating/sanitizing arrays no longer drops all but the first value - #791, #755, #704, #1002
• Added missing ko-KR to MobilePhoneLocale - #1218, #1219
• Don't silently fail when setting withMessage and not in schemas - #664

New Contributors

• @Yoowatney made their first contribution in https://github.com/express-validator/express-validator/pull/1219

Full Changelog: https://github.com/express-validator/express-validator/compare/v6.15.0...v7.0.0