/**
 * Returns the effective previous minor version for a given major.minor,
 * taking into account any skipped Minecraft version ranges.
 *
 * For example, if current is 1.26, the effective previous minor is 21
 * (not 25, because 1.22–1.25 were skipped).
 *
 * If there is no skip affecting the given version, it simply returns
 * `minor - 1`.
 */
export declare function getEffectivePreviousMinor(major: number, minor: number): number;
/**
 * Returns true if `candidateMinor` should be considered "too old" relative
 * to `currentMinor` for the given `major` version — i.e., it is older than
 * the N-1 window once skipped versions are taken into account.
 *
 * This replaces the naïve check `candidateMinor < currentMinor - 1`.
 */
export declare function isMinorVersionTooOld(major: number, currentMinor: number, candidateMinor: number): boolean;