Update Member 4.4.7 -> 4.4.8 does not work

[friedrich]

UCS 4.x apt key expired, no package installation,update, app installation is possible

Please check the article for updates, an overview can be found below. 2021-06-28 15:00 CEST original article 2021-06-28 19:00 CEST fix for UCS versions >= 4.4-4 errata 605, manual workaround for older systems required, see below. 2021-06-28 15:00 The apt key shipped with UCS 4 has expired. On UCS 4.x no package installations and updates are currently possible, as well as UCS Release updates and App installations. On an affected UCS system the problem can be seen when e.g. updating the apt pa…