/**
 * Select a published extension release from domain facts.
 *
 * An exact request may select a yanked release; a range selects the highest
 * non-yanked release it admits. Transport metadata and consumer-specific
 * admission policies are outside this algorithm.
 *
 * @experimental This API is unstable and may change without notice.
 * @packageDocumentation
 */
import * as Option from "effect/Option";
import type * as DateTime from "effect/DateTime";
import { type VersionEntryLike } from "./version-constraints.js";
/** The release facts needed for selection, independent of index serialization. */
export interface ReleasedVersion extends VersionEntryLike {
    readonly yankedAt?: DateTime.Utc | undefined;
}
/**
 * Every release a request admits, newest first. An absent request is `*`; an
 * exact request admits its version even when yanked; a range admits each
 * non-yanked release that satisfies it.
 */
export declare const admittedReleases: <T extends ReleasedVersion>(versions: ReadonlyArray<T>, request: Option.Option<string>) => ReadonlyArray<T>;
/**
 * Resolve an optional exact version or range against an index: the newest
 * release {@link admittedReleases} admits.
 */
export declare const resolveVersionEntry: <T extends ReleasedVersion>(versions: ReadonlyArray<T>, versionRange: Option.Option<string>) => Option.Option<T>;
/**
 * Select the highest non-yanked version, independent of index order.
 */
export declare const selectVersion: <T extends ReleasedVersion>(versions: ReadonlyArray<T>) => Option.Option<T>;
//# sourceMappingURL=version-selection.d.ts.map