import { type UpdateChannel } from './config.js';
export { compareVersions, getInstallTag, isNewer, parseVersion } from '@doist/cli-core/commands';
export declare function fetchLatestVersion(channel: UpdateChannel): Promise<string>;
/**
 * Tolerant channel read for `tw doctor`. Returns the persisted value when
 * valid, otherwise `'stable'`. cli-core's strict `getConfiguredUpdateChannel`
 * throws `INVALID_UPDATE_CHANNEL` — right behaviour for the user-facing
 * `tw update` command (handled by cli-core internally), wrong behaviour for
 * diagnostics which should surface the problem as a doctor warning rather
 * than crash.
 */
export declare function getConfiguredUpdateChannel(): Promise<UpdateChannel>;
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