tag 61d56265aca8e07ced1cd6c94448ad410952b966 1.6.4-release
Author:	Hizuro <hizuro@gmx.net>
Date:	Mon Jul 26 12:50:20 2021 +0200

Tagging as 1.6.4-release

commit 51a0aaead53609f7b4f6ed33ad207c263a24854a
Author: Hizuro <hizuro@gmx.net>
Date:   Mon Jul 26 12:48:45 2021 +0200

    minor changes
    update toc file

