Plasma 6 in parallel with Plasma 5

[epertinez]

One question...

Is plasma 6 PPA going to substitute plasma 5 or it is going to live along Plasma 5?

If I am not mistaken I remember, at least KDE 3 living together with KDE2, so you could install both of them and jump between them the same that you jump from Plasma to Gnome or from Plasma/X11 to Plasma/Wayland.

Wouldn't it be nice if you could keep jumping from Plasma5.27 to Plasma6 until you feel Plasma6 is good enough to keep it as your main driver?

Or maybe that ads unnecessary complexity?

[kc1di]

hello epertinez, Welcome to the forum. usually PPA will just install the upgrades to the newer version. However when kubuntu does come out with Version 6 you could dual boot with Version 5x on two different Partitions. Kubuntu is not schedule to go to version 6 until 24.10 is released. Your best bet to run Plasma 6 right now is most likely to dual boot KDE neon with your 5.27 release. However KDE neon had quite a few bugs when 6 was released so you may want to wait a bit until some of the are resolved.

[Schwarzer Kater]

[…] However when kubuntu does come out with Version 6 you could dual boot with Version 5x on two different Partitions. […]

"Two different" are the important words here, because in 99,999% it will have to be two different installations (on e.g. different partitions or different drives).
I am certain some hardcore-developer or btrfs-specialist would be able to do this from just one installation, but IMHO this would be totally out of the league for us mere mortals and would involve a lot of work…

By the way: using KDE Plasma especially in combination with GNOME in the same installation is a bad idea. There are a lot more things that will very likely lead to problems (for example portals that more or less exclude each other, concurring background services, etc.) than there were years ago.