One feature that was survived unchanged through versions and versions of QText was search. You could search only within current tab and that's all you could do. Even when folders got added search was still limited to single file.
Well, not anymore. Finally you can search across all folders and files. Or you can limit search to current folder only. Choice is yours. Only real limit is searching through encrypted files which is not supported for security reasons. For them search will work only when you have them currently open (and thus decrypted).