/**
 * Lightweight semver comparison. Not a full semver implementation —
 * just enough to compare image tags from container registries.
 *
 * Handles:
 * - optional "v" prefix ("v1.2.3" === "1.2.3")
 * - missing patch ("1.5" === "1.5.0")
 * - prerelease tails ("2.0.0-beta1" < "2.0.0")
 * - unequal segment counts ("1.2" < "1.2.1")
 *
 * Returns:
 *   -1  if a < b
 *    0  if a === b
 *    1  if a > b
 *
 * Throws nothing — non-parseable input compares as equal to itself
 * and unequal to anything else, with the lexically-smaller string
 * being "less". Caller should classify the tag first via tagClassifier
 * and only call compareVersions for tagKind === "semver".
 */
export declare function compareVersions(a: string, b: string): -1 | 0 | 1;
//# sourceMappingURL=semver.d.ts.map