npm / @faker-js/faker

@faker-js/faker

What changed in @faker-js/faker 10, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-18.

2 breaking1 security43 new APIs and options19 behavior and defaults31 fixes and other

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@unstale/cli 0.1.1 on npm

@faker-js/faker 1096 changes

Breaking changes 2

Stops scaling the HSLA alpha into a percentage.
10.6.0release notes
Rejects refDates that a ULID timestamp cannot encode.
10.6.0release notes

Security 1

Faker: helpers.fake exploitable into arbritary code execution
10.5.0security advisory

New APIs and options 43

Adds vehicle data for the de locale.
10.6.0release notes
Adds 060 Japanese mobile phone number formats.
10.6.0release notes
Adds Norwegian animal data for the nb_NO locale.
10.6.0release notes
Adds Norwegian food data for the nb_NO locale.
10.6.0release notes
Changes ne to Devangari and adds en_NP.
10.6.0release notes
Introduces the NumberRange type.
10.6.0release notes
Adds Welsh locale data for sex, direction, animals, vehicle fuel, book format, counties, postal addresses and postcodes, internet domain suffixes, phone numbers, continents, city names, street names, states, and building numbers.
10.5.0release notes
Adds color data for the cy locale.
10.5.0release notes
Can now accept a year range when generating a future date.
10.5.0release notes
Can now accept a year range when generating a past date.
10.5.0release notes
Can now accept a date range when generating a recent date.
10.5.0release notes
Can now accept a date range when generating a soon date.
10.5.0release notes
Adds postal_address data and improves secondary_address data.
10.5.0release notes
Adds Farsi airline locale data.
10.5.0release notes
Exposes core.locale as a LocaleProxy.
10.5.0release notes
Introduces FakerCore as a core Faker API.
10.5.0release notes
Adds the sl_SI locale with location module data.
10.5.0release notes
Adds the mn_MN_cyrl Mongolian locale.
10.5.0release notes
Adds postal address generation.
10.5.0release notes
Adds distributor functions to the number module.
10.5.0release notes
Adds a mobile style for generated phone numbers.
10.5.0release notes
Adds the first standalone module functions.
10.5.0release notes
Adds a Norwegian country definition for the nb_NO locale.
10.4.0release notes
UUID v7 is now supported.
10.3.0release notes
Japanese color definitions are added.
10.3.0release notes
A Japanese dog definition is added.
10.3.0release notes
A Japanese food module is added.
10.3.0release notes
Japanese internet definitions are added.
10.3.0release notes
Japanese job definitions are added for the person module.
10.3.0release notes
Japanese suffix definitions are added for the person module.
10.3.0release notes
Norwegian continent definitions are added.
10.3.0release notes
A Norwegian direction definition is added.
10.3.0release notes
Norwegian sex definitions are added.
10.3.0release notes
A Norwegian vehicle definition is added.
10.3.0release notes
Norwegian zodiac sign definitions are added.
10.3.0release notes
Adds a location module for the bn_BD locale.
10.2.0release notes
Adds states (regions) to the Danish locale.
10.2.0release notes
Adds Hungarian city names, full street addresses, continents, countries, and directions.
10.2.0release notes
Adds Indonesian translations for animal, color, commerce, and word data, and adds country data to location.
10.2.0release notes
Adds person module data to the ku_ckb locale.
10.2.0release notes
Adds the ku_kmr_latin locale.
10.2.0release notes
Adds the sl_SI locale and its person module data.
10.2.0release notes
Adds support for UPC.
10.2.0release notes

Behavior and default changes 19

Organizes first names by gender in the en locale.
10.6.0release notes
Improves middle names organized by gender for the en locale.
10.6.0release notes
Adds mobile phone number styles for more locales.
10.6.0release notes
Adds more realistic Greek address data.
10.5.0release notes
Improves en_GB postcode data.
10.5.0release notes
Improves en_IE postal address data.
10.5.0release notes
Expands plant-based dish and pattern variety.
10.5.0release notes
Extends Turkish person last names.
10.5.0release notes
Adds Japanese cat breed definitions.
10.4.0release notes
Adds Japanese horse breed definitions.
10.4.0release notes
Adds plant-based dish variety.
10.4.0release notes
sexType can now return 'generic'.
10.3.0release notes
Allows product name patterns to vary by locale.
10.2.0release notes
Uses accents in English country names.
10.2.0release notes
Adds support for Iranian IBANs.
10.2.0release notes
Removes some negative words from the Hungarian locale.
10.2.0release notes
Removes offensive and inappropriate words from the Japanese locale.
10.2.0release notes
Adds counties and states to nb_NO location data.
10.2.0release notes
Moves raspberry from the vegetable category to the fruit category.
10.2.0release notes

Fixes and other changes 31

Gives the LCH hue its full 360 degree range.
10.6.0release notes
Fixes handling of prototype property keys.
10.6.0release notes
Validates CIDR prefix length and octet range in ipv4().
10.6.0release notes
Generates long passwords without causing a stack overflow.
10.6.0release notes
Excludes reserved port 0 from generated internet ports.
10.6.0release notes
Excludes forbidden letter combinations from Dutch postcodes.
10.6.0release notes
Generates only valid French postal codes.
10.6.0release notes
Uses only valid letters in en_CA postcodes.
10.6.0release notes
Calculates the VIN check digit.
10.6.0release notes
The closest strategy now picks the nearest word length.
10.6.0release notes
Updates the nl_BE phone number patterns.
10.6.0release notes
Fixes an incorrect date boundary in past and future.
10.5.0release notes
Fixes an incorrect date boundary in past and future.
10.5.0release notes
Fixes a typo in de_CH last names.
10.5.0release notes
Corrects fruit and vegetable locale data.
10.5.0release notes
Fixes phone numbers for en_AU.
10.5.0release notes
Corrects Farsi phone locales.
10.5.0release notes
Fixes lazy results in fake.
10.5.0release notes
Validates unsupported fileExt mime types.
10.5.0release notes
routingNumber now uses a real FederalReserveRoutingSymbol from a lookup table.
10.5.0release notes
Ignores wrapper characters in fromRegExp and handles single-character patterns.
10.5.0release notes
Removes citation brackets from snake names.
10.5.0release notes
Adds Japanese bear definitions.
10.4.0release notes
Adds Japanese bird definitions.
10.4.0release notes
Adds Japanese cattle breed definitions.
10.4.0release notes
Adds Japanese fish definitions.
10.4.0release notes
Corrects typos and capitalization in Mexican Spanish street names.
10.4.0release notes
Adds phone numbers for the fi locale.
10.4.0release notes
Empty strings are removed from Hebrew lorem words.
10.3.0release notes
The state name is corrected to Trøndelag for the nb_NO locale.
10.3.0release notes
Corrects the locale endonym to use Latin script.
10.2.0release notes