/**
 * Centralized, date-aware registry of AWS managed-service version
 * deprecation / end-of-support schedules.
 *
 * WHY THIS EXISTS: AWS periodically ends "standard support" for Lambda
 * runtimes, RDS/Aurora database engine versions, and EKS Kubernetes
 * versions. For RDS/Aurora and EKS, AWS auto-enrolls unmigrated resources
 * in a paid "Extended Support" tier rather than just cutting them off —
 * this is an easy-to-miss, often-expensive cost. Lambda runtimes have no
 * direct AWS surcharge but stop receiving security patches on a schedule.
 *
 * MAINTENANCE: the dates/prices below are a point-in-time snapshot taken
 * from AWS's own published support schedules. AWS adds new versions and
 * schedules on an ongoing basis, so this file needs periodic manual
 * refreshes. Sources (re-check periodically):
 *   - https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/extended-support.html
 *   - https://docs.aws.amazon.com/AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-release-calendar.html
 *   - https://endoflife.date/amazon-rds-mysql / amazon-rds-postgresql / aws-lambda / amazon-elasticache-redis / amazon-elasticsearch
 *   - https://docs.aws.amazon.com/eks/latest/userguide/kubernetes-versions.html
 *   - https://docs.aws.amazon.com/documentdb/latest/devguide/support-charges.html
 *   - https://aws.amazon.com/blogs/database/introducing-extended-support-for-amazon-elasticache-version-4-and-version-5-for-redis-oss/
 *   - https://docs.aws.amazon.com/opensearch-service/latest/developerguide/service-software.html (Extended Support timeline)
 * Last reviewed: 2026-09-15.
 */
export type DeprecationStatus = "current" | "deprecating-soon" | "deprecated";
export declare const LAMBDA_RUNTIME_SUPPORT: Record<string, string>;
export declare function getLambdaRuntimeStatus(runtime: string, now?: Date): {
    status: DeprecationStatus;
    date: string;
    daysUntil: number;
} | null;
interface RdsVersionSupport {
    /** Matches EngineVersion when it starts with this prefix (e.g. "8.0") */
    versionPrefix: string;
    standardSupportEndDate: string;
    /** USD per vCPU-hour, Extended Support years 1-2 */
    vcpuHourRateYears1to2: number;
    /** USD per vCPU-hour, Extended Support year 3 */
    vcpuHourRateYear3: number;
}
export declare const RDS_ENGINE_VERSION_SUPPORT: Record<string, RdsVersionSupport[]>;
/**
 * Approximate vCPU count from an RDS instance class, using the standard
 * size-suffix doubling convention (large=2, xlarge=4, 2xlarge=8, ...).
 * Burstable t3/t4g micro/small/medium are 2 vCPUs (with CPU credits), same
 * as the modern-generation minimum. This is an approximation for cost
 * estimation, consistent with the hourly-price approximations already used
 * elsewhere in the rds module.
 */
export declare function estimateRdsInstanceVcpuCount(instanceClass: string): number;
export declare function getRdsExtendedSupportStatus(engine: string | undefined, engineVersion: string | undefined, vcpuCount: number, now?: Date): {
    status: DeprecationStatus;
    date: string;
    daysUntil: number;
    estimatedMonthlySurchargeUsd: number;
} | null;
export declare const EKS_VERSION_SUPPORT: Record<string, string>;
export declare function getEksVersionStatus(version: string, now?: Date): {
    status: DeprecationStatus;
    date: string;
    daysUntil: number;
    estimatedMonthlySurchargeUsd: number;
} | null;
export declare const ELASTICACHE_ENGINE_VERSION_SUPPORT: Record<string, {
    versionPrefix: string;
    standardSupportEndDate: string;
}[]>;
export declare function getElastiCacheEngineSupportStatus(engine: string | undefined, engineVersion: string | undefined, hourlyPricePerNode: number, numNodes: number, now?: Date): {
    status: DeprecationStatus;
    date: string;
    daysUntil: number;
    estimatedMonthlySurchargeUsd: number;
} | null;
interface OpenSearchVersionSupport {
    versionPrefix: string;
    standardSupportEndDate: string;
}
export declare const OPENSEARCH_ENGINE_VERSION_SUPPORT: Record<string, OpenSearchVersionSupport[]>;
/** Parses "Elasticsearch_7.10" / "OpenSearch_2.11" into { engine, version } */
export declare function parseOpenSearchEngineVersion(engineVersion: string): {
    engine: string;
    version: string;
} | null;
export declare function getOpenSearchEngineSupportStatus(engineVersion: string | undefined, hourlyPricePerInstance: number, instanceCount: number, now?: Date): {
    status: DeprecationStatus;
    date: string;
    daysUntil: number;
    estimatedMonthlySurchargeUsd: number;
} | null;
export {};