/**
 * @license Copyright (c) 2003-2026, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-licensing-options
 */
/**
 * Checks features supported by currently installed version of the editor.
 *
 * @returns Object containing flags that indicate which features are supported.
 */
export declare function getInstalledCKBaseFeatures(): SupportedCKBaseFeatures;
export type SupportedCKBaseFeatures = {
    /**
     * Flag that indicates if editor supports `roots` / `root` config entries.
     *
     * Older versions:
     *
     * ```ts
     * MultirootEditor.create( sourceElementOrData, {
     * 	rootsAttributes: {
     * 		"custom-root": { ... }
     * 	}
     * 	// ...
     * } )
     * ```
     *
     * Newer versions:
     *
     * ```ts
     * MultirootEditor.create( {
     * 	roots: {
     * 		"custom-root": { modelAttributes: { ... } }
     * 	}
     * 	// ...
     * } )
     * ```
     *
     * See more: https://github.com/ckeditor/ckeditor5/issues/19885
     */
    rootsConfigEntry: boolean;
    /**
     * Flag that indicates if editor no longer supports `sourceElementOrData` as first parameter
     * in its initializer.
     *
     * Older versions:
     *
     * ```ts
     * ClassicEditor.create( document.querySelector( '#editor' ), { ... } )
     * ```
     *
     * Newer versions:
     *
     * ```ts
     * ClassicEditor.create( {
     * 	attachTo: document.querySelector( '#editor' ),
     * 	// ...
     * } )
     * ```
     */
    elementConfigAttachment: boolean;
};