build(deps): update dependency type-fest to v5 #1339

IsEqual: Fix generic inference (#1306) f7b2667
ConditionalPickDeep / SimplifyDeep: Prevent mapping over built-ins (#1293) f14a75a
ArraySlice / StringSlice: Fix behavior with unions (#1291) 133258b

`v5.2.0`

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`v5.1.0`

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New types

Improvements

ReadonlyTuple: Deprecate in favor of TupleOf (#1256) af4bebc
TsConfigJson: Add missing lib enum values (#1263) 72f491f
TsConfigJson: Add rewriteRelativeImportExtensions (#1262) 7d011ce

Fixes

PartialDeep: Fix behavior with functions containing multiple call signatures (#1259) 3bd9de6
IsEqual: Fix behaviour when instantiated with never and unknown (#1251) 785549f
FixedLengthArray: Fix element type (#1246) ee29ef7
is-equal: Fix handling with intersecting wrapped types (#1231) 5af60a1

`v5.0.1`

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Add missing exports 4f9c248

`v5.0.0`

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Breaking

This package is now pure ESM. Please read this.
Require TypeScript 5.9 b5b0214
Require Node.js 20 cc2b0f2
Reminder: type-fest requires strict: true in your tsconfig.
StringKeyOf: Rename to KeyAsString e492c9c
ArrayTail: Enable preserveReadonly by default and remove the option b34b1d8
CamelCase / CamelCasedProperties / CamelCasedPropertiesDeep / PascalCase / PascalCasedProperties / PascalCasedPropertiesDeep: Disable preserveConsecutiveUppercase by default 8226c1b
- This aligns it with the general JavaScript naming convention.
PartialDeep: Disable allowUndefinedInNonTupleArrays by default b3c4524
Split: Enable strictLiteralChecks by default 544a846
Paths: Default maxRecursionDepth 5 (was 10) 2ab5dec
ObservableLike: Move to sub-export 2a1072e
Deprecate If* types in favor of a single If 4c2151a

New types

Alphanumeric — Single alphanumeric character (A–Z, a–z, 0–9). 484e030
AllExtend — Evaluates to true if every element of a tuple/array extends U. c8c6d55
ConditionalSimplify — Simplifies a type’s unions/intersections with opt-in controls. b7a4771
ConditionalSimplifyDeep — Deep version of ConditionalSimplify that recurses into objects. b7a4771
DigitCharacter — Single ASCII digit character (0–9). 484e030
ExcludeStrict — Non-distributive, stricter variant of Exclude<T, U>. e6f62a2
ExtendsStrict — Non-distributive A extends B check. d71242a
ExtractStrict — Non-distributive, stricter variant of Extract<T, U>. 98d24fa
IsLowercase — Evaluates to true if a string literal is all lowercase. afe132c
IsNullable — Evaluates to true if T includes null. 5067e25
IsOptional — Evaluates to true if T includes undefined. 5067e25
IsOptionalKeyOf — Evaluates to true if property K of T is optional. 93728b5
IsReadonlyKeyOf — Evaluates to true if property K of T is readonly. 93728b5
IsRequiredKeyOf — Evaluates to true if property K of T is required. 93728b5
IsUnion — Evaluates to true if T is a union type. b3d92ed
IsUndefined — Evaluates to true if the type is exactly undefined. f7bc576
IsUppercase — Evaluates to true if a string literal is all uppercase. afe132c
LowercaseLetter — Single lowercase Latin letter (a–z). 484e030
RemovePrefix — Removes a specified prefix from a string literal. 18a1c04
UppercaseLetter — Single uppercase Latin letter (A–Z). 484e030

Improvements

Jsonify: Handle unknown as JsonValue 642bb13
SetRequired / SetOptional / SetReadonly: Handle functions with properties a5e45d4
Schema: Preserve arrays/remove extraneous unions 8a96def; drop undefined for recurseIntoArrays 1cb955b
ReadonlyKeysOf / WritableKeysOf: Add object constraint a6efbe0
TsConfigJson: Add TypeScript 5.9 fields d2bda94

Fixes

Or: Fix with boolean, never, any 42d6106
And: Fix with boolean, never, any b38ac60
IsStringLiteral: Fix uncollapsed unions, and tagged types eb37799 / d1b35c7
Paths: Fix behavior with index signatures 9926e5d
ConditionalKeys: Fix behavior with arrays and unions 4d7cc50
RequiredDeep: Fix with undefined bfcdbc4
Split: Fix template strings ending with interpolation 853b881
ArrayTail: Fix fix non-tuple arrays f3aabd8
Fix UnionMin and UnionMax d52d5e7

`v4.41.0`

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Add SetNonNullableDeep type (#1117) b9606e7
LessThan / GreaterThan / GreaterThanOrEqual: Fix behaviour with unions (#1116) afd809a
RequireAllOrNone / RequireAtLeastOne / RequireExactlyOne / RequireOneOrNone: Fix behaviour with any and never (#1113) 8c154e9

`v4.40.1`

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PartialDeep: Fix behaviour with functions containing properties (#1108) 86a3a69
CamelCasedPropertiesDeep / DelimiterCasedPropertiesDeep / KebabCasedPropertiesDeep / PascalCasedPropertiesDeep / SnakeCasedPropertiesDeep: Fix behaviour when property value is unknown (#1112) cfcf9ec

`v4.40.0`

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Add NonEmptyString type (#1103) 19a9c37
Add UnknownMap type (#1106) b4ace2d
Add UnknownSet type (#1106) b4ace2d
IsFloat / IsInteger: Fix instantiations with numbers represented using exponential notation (#1101) 21a92f6

`v4.39.1`

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OptionalKeysOf / WritableKeysOf: Fix generic assignability with keyof T (#1098) 1b41ed3

`v4.39.0`

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ArrayTail: Add preserveReadonly option (#1091) 544271e
PartialDeep : Fix behaviour when strictNullChecks is disabled (#1096) 7536bae
OptionalKeysOf / RequiredKeysOf: Fix instantiations with unions and arrays (#1089) e1ac7b2
WritableKeysOf / ReadonlyKeysOf: Fix behavior with unions and optional properties (#1088) bbf9137

`v4.38.0`

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AsyncReturnType: Add support for PromiseLike (#1082) 72ccde9
DelimiterCase / SnakeCase / ScreamingSnakeCase / KebabCase: Fix instantiations containing punctuations (#1080) 063e28d
DelimiterCase: Pass Options generic to all related types (#1078) 1974944
CamelCasedPropertiesDeep: Make nested array objects respect the options (#1077) c11c9ca

`v4.37.0`

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Sum: Add negative return value support (#1068) af5bfb7
Subtract: Add negative return value support (#1061) 2b85ae2
Split: Add strictLiteralChecks option (#1067) cc93f85
Split: Fix instantiations with unions (#1067) cc93f85
Replace: Fix instantiations with unions (#1065) a733698
DelimiterCase / SnakeCase / ScreamingSnakeCase / KebabCase: Fix default value for splitOnNumbers option (#1073) e462e72

`v4.36.0`

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TsConfigJson: Add TypeScript 5.8 fields (#1064) 918156a
Replace: Add support for generating longer strings (#1060) 3c03a0d
DelimiterCase: Internal improvements (#930) a463c30

`v4.35.0`

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Add TupleToObject type (#1055) c8149ec
Paths: Add depth option (#1058) 2633e5b

`v4.34.1`

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OmitDeep: Fix import statement (#1052) e5b66a4

`v4.34.0`

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Add AllUnionFields type (#997) 9aba4c3
Paths: Add leavesOnly option (#1050) 7dfb307
OmitDeep: Fix removal of multiple paths within arrays (#1049) fa6e31b

`v4.33.0`

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StringRepeat: Add support for generating longer strings & fix instantiations with unions (#1046) fbccaab
Split: Add support for longer strings (#1042) 49605b9
Get: Optimize performance (#1031) cfb5947
KeysOfUnion: Fix assignability with keyof (#1009) 4789c7c
IsStringLiteral: Fix instantiations with infinite string types (#1044) e7800af
SetRequiredDeep: Fix handling of unions in nested keys (#1037) bf5ce3c
StringSlice: Fix return type when passing in non-literal (#1036) 979eccf
Sum/Subtract: Fix instantiations with unions (#1034) 69bfd51

Fixes

SetRequired: Fix support for removal of optional modifiers from tuples (#1030) c897aad

`v4.31.0`

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SetFieldType: Add option to preserve property modifiers (#1017) 59517cb
IsEqual: Fix identity issue (#1012) 591700a
SetOptional: Fix instantiations with index signatures (#1014) cb269ff
SetRequired: Fix instantiations with index signatures (#1014) cb269ff
SetReadonly: Fix instantiations with index signatures (#1014) cb269ff

`v4.30.2`

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Fix missing export (#1011) 527d600
SetOptional/SetRequired/SetReadonly: Fix when the second argument is any (#1007) fdbcb11
SetOptional: Fix when instantiated with unions (#1007) fdbcb11

`v4.30.1`

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Arrayable: Make it more usable by removing readonly (#1003) a128f69

`v4.30.0`

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Add SharedUnionFields type (#994) a716c29
ArrayTail: Fix support for optional parameters (#977) f6b1387

`v4.29.1`

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IsAny: Fix circular constraint error on TypeScript 5.4+ (#993) 32d94dd

`v4.29.0`

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Add IntClosedRange type (#992) d7b692b
Schema: Add recurseIntoArrays option (#960) fbbb8ba

`v4.28.1`

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SharedUnionFieldsDeep: Fix support for optional fields (#988) 4b49b93

`v4.28.0`

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TsConfigJson: Add TypeScript 5.7 fields (#987) 9d6fff3

`v4.27.1`

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SharedUnionFieldsDeep: Fix propagation for non union root types (#984) f215f9f
ArraySlice: Fix support for union input (#986) 0efbae3

`v4.27.0`

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Add Words type (#975) 13c0c83
Get: Fix handling of paths with number template literal (#968) b93f54a
TsConfigJson: Add noCheck to compilerOptions (#981) a470913

`v4.26.1`

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Exact: Fix usage with recursive types and unions (#949) 91f6d39

`v4.26.0`

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Add UnionToTuple type (#945) 1f4f7a1

`v4.25.0`

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Add StringRepeat type (#938) a83e87e
Add Arrayable type #270 (#935) 9aabcb9

`v4.24.0`

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Path: Add bracketNotation option (#926) 3b15a94

`v4.23.0`

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Paths: Add maxRecursionDepth option (#920) 052e887

`v4.22.1`

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Fix missing exported internal types (#918) 4b74444

`v4.22.0`

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New types

ArrayTail (#913) 128b21e
NonEmptyTuple (#915) bb57638
FindGlobalType (#908) 0086cd6
FindGlobalInstanceType (#908) 0086cd6

Improvements

Ensure all RequireX types' second parameter is optional (#907) fee4e04
StructuredCloneable: Include web-specific types when available (#908) 0086cd6

Fixes

Exact: Fix type when class is present (#911) bf85819

`v4.21.0`

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New types

StructuredCloneable (#897) 737550b

Fixes

Jsonify: Convert undefined to null in union element of array (#901) 60c1024
Exact: Fix support for Date in union (#902) d89a709
CamelCasedPropertiesDeep: Fix handling of non-recursive types inside target type (#890) 476024d

`v4.20.1`

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Schema: Fix handling of arrays (#887) c570ec2
Paths: Prevent infinite recursion (#891) 7d4e875

`v4.20.0`

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SimplifyDeep: Support array (#888) a6ab051
IsLiteral: Return false for tagged types (#886) 587380c

`v4.19.0`

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Add SimplifyDeep type (#882) 3a04fcf

`v4.18.3`

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ConditionalKeys: Fix filtering out never type (#881) 863511d

`v4.18.2`

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CamelCasedPropertiesDeep: Fix tuple being incorrectly turned into array (#818) 4e7bb18

`v4.18.1`

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Fix missing exports (#876) ed860e9

`v4.18.0`

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New types

Improvements

TsConfigJson: Add preserve module type and ES2022 lib types (#874) 7096613
Opaque: Mark as deprecated (#867) ef7b580
UnwrapOpaque: Mark as deprecated (#867) ef7b580

`v4.17.0`

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New types

IsNull d639574

Fixes

Zero: Fix missing export (#870) 91a2b1e

`v4.16.0`

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New types

Fixes

Integer: Fix handling of some edge-cases (#857) f5b09de
Float: Fix handling of some edge-cases (#857) f5b09de

`v4.15.0`

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New types

Fixes

ConditionalKeys: Fix TypeScript 5.4 compatibility (#852) 0fb2d62
WritableDeep: Fix TypeScript 5.4 compatibility (#839) 2878773
ReadonlyDeep: Fix TypeScript 5.4 compatibility (#839) 2878773

`v4.14.0`

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Add DistributedPick type (#841) fa4099c

`v4.13.1`

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SetParameterType: Properly fix compatibility with TypeScript 5.4 (#836) a186adb

`v4.13.0`

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New types

DistributedOmit (#820) bc49577

Improvements

ArraySlice: Support array spread (#832) d2d0d01

Fixes

SetParameterType: Fix compatibility with TypeScript 5.4 (#835) 2bc451e
OmitDeep: Fix handling for when the given path is not matched (#834) 4f14bff

`v4.12.0`

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New types

`v4.11.1`

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OmitDeep: Fix internally imported type (#824) 2061925

`v4.11.0`

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New types

[OmitDeep](https://redirect.github.com/sindresorhus/type-fest/blo

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renovate bot added the dependencies Pull requests that update a dependency file label Sep 13, 2025

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build(deps): update dependency type-fest to v5

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build(deps): update dependency type-fest to v5 #1339

build(deps): update dependency type-fest to v5 #1339

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