docs: mark Opaque as deprecated

readme.md

@@ -151,10 +151,8 @@ Click the type names for complete docs.
 - [`UndefinedOnPartialDeep`](source/undefined-on-partial-deep.d.ts) - Create a deep version of another type where all optional keys are set to also accept `undefined`.
 - [`ReadonlyDeep`](source/readonly-deep.d.ts) - Create a deeply immutable version of an `object`/`Map`/`Set`/`Array` type. Use [`Readonly<T>`](https://www.typescriptlang.org/docs/handbook/utility-types.html#readonlytype) if you only need one level deep.
 - [`LiteralUnion`](source/literal-union.d.ts) - Create a union type by combining primitive types and literal types without sacrificing auto-completion in IDEs for the literal type part of the union. Workaround for [Microsoft/TypeScript#29729](https://github.com/Microsoft/TypeScript/issues/29729).
-- [`Tagged`](source/opaque.d.ts) - Create a [tagged type](https://medium.com/@KevinBGreene/surviving-the-typescript-ecosystem-branding-and-type-tagging-6cf6e516523d) that can support [multiple tags](https://github.com/sindresorhus/type-fest/issues/665) if needed.
-- [`UnwrapTagged`](source/opaque.d.ts) - Get the untagged portion of a tagged type created with `Tagged`.
-- [`Opaque`](source/opaque.d.ts) - Create a [tagged type](https://medium.com/@KevinBGreene/surviving-the-typescript-ecosystem-branding-and-type-tagging-6cf6e516523d). This implementation only supports a single tag.
-- [`UnwrapOpaque`](source/opaque.d.ts) - Get the untagged portion of a tagged type created with `Opaque` or `Tagged`.
+- [`Tagged`](source/opaque.d.ts) - Create a [tagged type](https://medium.com/@KevinBGreene/surviving-the-typescript-ecosystem-branding-and-type-tagging-6cf6e516523d) that can support [multiple tags](https://github.com/sindresorhus/type-fest/issues/665) if needed and [per-tag metadata](https://medium.com/@ethanresnick/advanced-typescript-tagged-types-improved-with-type-level-metadata-5072fc125fcf). (This replaces the previous [`Opaque`](source/opaque.d.ts) type, which is now deprecated.)
+- [`UnwrapTagged`](source/opaque.d.ts) - Get the untagged portion of a tagged type created with `Tagged`. (This replaces the previous [`UnwrapOpaque`](source/opaque.d.ts) type, which is now deprecated.)
 - [`InvariantOf`](source/invariant-of.d.ts) - Create an [invariant type](https://basarat.gitbook.io/typescript/type-system/type-compatibility#footnote-invariance), which is a type that does not accept supertypes and subtypes.
 - [`SetOptional`](source/set-optional.d.ts) - Create a type that makes the given keys optional.
 - [`SetReadonly`](source/set-readonly.d.ts) - Create a type that makes the given keys readonly.

source/opaque.d.ts

@@ -76,6 +76,7 @@ type Person = {
 ```
 
 @category Type
+@deprecated Use {@link Tagged} instead
 */
 export type Opaque<Type, Token = unknown> = Type & TagContainer<Token>;
 
@@ -109,6 +110,7 @@ type WillWork = UnwrapOpaque<Tagged<number, 'AccountNumber'>>; // number
 ```
 
 @category Type
+@deprecated Use {@link UnwrapTagged} instead
 */
 export type UnwrapOpaque<OpaqueType extends TagContainer<unknown>> =
  OpaqueType extends Tag<PropertyKey, any>