public static final String LABELS_upgrade_data_migration = "{labels.upgrade_data_migration}";

    /** The key of the message: Re-indexing */
    public static final String LABELS_upgrade_reindex = "{labels.upgrade_reindex}";

    /** The key of the message: Start */
    public static final String LABELS_upgrade_start_button = "{labels.upgrade_start_button}";

    /** The key of the message: Replace Aliases */