/**
 * Update Policy — filters and prioritizes dependency update candidates
 * based on configurable policies.
 *
 * Requirements: 11.1, 11.6, 11.7
 */
import type { PackageVersionInfo } from './registry-client.js';
export type UpdateStrategy = 'patch' | 'minor' | 'major' | 'all';
export interface UpdatePolicy {
    /** Default strategy for all packages */
    defaultStrategy: UpdateStrategy;
    /** Per-package overrides */
    packageOverrides: Record<string, UpdateStrategy>;
    /** Maximum number of updates to suggest */
    maxUpdates: number;
    /** Skip dependencies published less than N days ago */
    minAgeDays: number;
    /** Auto-group related packages (e.g. @babel/*) */
    groupRelatedPackages: boolean;
    /** Packages to never auto-update */
    pinned: string[];
}
export interface UpdateCandidate {
    packageName: string;
    ecosystem: string;
    currentVersion: string;
    targetVersion: string;
    updateType: 'patch' | 'minor' | 'major';
    versionInfo: PackageVersionInfo;
    /** Grouping key for related packages */
    groupKey?: string;
}
/**
 * Classify the update type by comparing semver versions.
 *
 * Property 20: Update type classification correctness
 */
export declare function classifyUpdateType(currentVersion: string, targetVersion: string): 'patch' | 'minor' | 'major' | null;
/**
 * Apply update policy to filter and prioritize update candidates.
 *
 * Flow:
 * 1. For each dependency, determine available updates
 * 2. Filter by policy (strategy, pinned list, min age)
 * 3. Group related packages if enabled
 * 4. Sort by priority: security patches > patch > minor > major
 * 5. Truncate to maxUpdates
 */
export declare function applyUpdatePolicy(versionInfoMap: Map<string, PackageVersionInfo>, policy: UpdatePolicy, ecosystem: string): UpdateCandidate[];
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