export type RuntimeEnvironment = "dev" | "production";
/** Stable release versions are the only production runtime channel. */
export declare function isProductionVersion(version: string): boolean;
/** Local development artifacts use one exact, ordered SemVer form. */
export declare function isDevVersion(version: string): boolean;
export declare function runtimeEnvironmentForVersion(version: string): RuntimeEnvironment | undefined;
export declare function devVersionParts(version: string): {
    baseVersion: string;
    sequence: number;
} | undefined;
/** Compare SemVer strings. Returns undefined when either value is not SemVer. */
export declare function comparePackageVersions(left: string, right: string): number | undefined;
export declare function isNewerPackageVersion(candidate: string, current: string): boolean;
/** 当前版本是否为预发布版本（含 -dev/-alpha/-beta 等 prerelease 后缀）或无法识别的版本号。 */
export declare function isPrereleaseOrUnrecognizedVersion(version: string): boolean;