npm / ts-essentials

ts-essentials

What changed in ts-essentials 10, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-18.

3 deprecations8 new APIs and options1 behavior and defaults5 fixes and other

See which of these apply to your code, ranked, in your agent:

npx @unstale/cli init

ts-essentials 1017 changes

Deprecates Exact and renames it to IsExact.
10.2.0release notes
Deprecates NonEmptyArray and renames it to AnyNonEmptyArray.
10.2.0release notes
Deprecates NonNever and renames it to OmitNeverProperties.
10.2.0release notes

Added the PublicInterface<Type> utility type.
10.2.1release notes
Adds OverrideDeepReadonlyOptions to configure passthrough behaviour for built-in types Date, Error, and RegExp per use-case.
10.2.0release notes
Adds Iterable support for DeepWritable.
10.2.0release notes
Adds the JsonValue utility type, along with JsonPrimitive, JsonObject, and JsonArray.
10.2.0release notes
Adds the NonUnion utility type.
10.2.0release notes
Adds the RequireAtLeastOne utility type.
10.2.0release notes
Adds the RequireAtMostOne utility type.
10.2.0release notes
Adds the UnionKeys utility type.
10.2.0release notes

Fixes DeepPartial for arrays containing a rest element.
10.2.0release notes
Fixes IsTuple for tuples with both optional elements and a rest element.
10.2.0release notes
Fixes Prettify when its type argument is a class with private or protected members.
10.2.0release notes
Fixes assignability for UnionKeys.
10.2.0release notes
Fixes assignability for UnionToIntersection.
10.2.0release notes