/**
 * Parse a dotted version floor into numeric parts for stable comparisons.
 *
 * @param value Human-authored version floor such as `7.0` or `8.1.2`.
 * @returns Numeric version segments suitable for ordered comparison.
 * @throws When any segment contains non-digit characters.
 */
export declare function parseVersionFloorParts(value: string): number[];
/**
 * Compare two dotted version floors.
 *
 * Missing trailing segments are treated as zero so `7.0` equals `7.0.0`.
 *
 * @param left Left-hand version floor.
 * @param right Right-hand version floor.
 * @returns `1` when left is higher, `-1` when right is higher, or `0` when equal.
 */
export declare function compareVersionFloors(left: string, right: string): number;
/**
 * Pick the higher version floor while tolerating undefined values.
 *
 * @param current Current resolved floor, when present.
 * @param candidate Candidate floor to compare against the current floor.
 * @returns The higher defined floor, or undefined when neither value exists.
 */
export declare function pickHigherVersionFloor(current: string | undefined, candidate: string | undefined): string | undefined;