/**
 * Startup environment probes and the changelog-on-update lookup, shown as
 * notices when the interactive mode starts. Extracted from interactive-mode.ts.
 */
import type { SettingsManager } from "../../core/settings-manager.js";
export declare function checkForPackageUpdates(cwd: string, settingsManager: SettingsManager): Promise<string[]>;
export declare function checkTmuxKeyboardSetup(): Promise<string | undefined>;
/**
 * Get changelog entries to display on startup.
 * Only shows new entries since last seen version, skips for resumed sessions.
 */
export declare function getChangelogForDisplay(options: {
    /** True for resumed/continued sessions (which already have messages). */
    hasMessages: boolean;
    settingsManager: SettingsManager;
}): string | undefined;
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