I am not sure about the difference between KDE Neon and regular Ubuntu.

My question is that, Is KDE Neon will get the Ubuntu 21.04 LTS this week ...

....or ...that's something else , apart from the KDE project ?

benderclark wrote:I am not sure about the difference between KDE Neon and regular Ubuntu.

My question is that, Is KDE Neon will get the Ubuntu 21.04 LTS this week ...

....or ...that's something else , apart from the KDE project ?

https://neon.kde.org/faq#diff-ubuntu

Also, Ubuntu LTS is only released in April of even years, so every two years (so far). So the current LTS is still 20.04, next LTS will be 22.04 unless Ubuntu changes its schedule for some odd reason.

But now (from July) KDE Neon won't have LTS support: so what should we do?
I have already read a wiki about this, but it didn't change anything on my KDE Neon (with 20.04 LTS).

duns wrote:But now (from July) KDE Neon won't have LTS support: so what should we do?
I have already read a wiki about this, but it didn't change anything on my KDE Neon (with 20.04 LTS).

The LTS edition of neon is in relation the the Plasma LTS version (5.18.x) , not the Ubuntu LTS base OS, so the wiki page you read has no effect on anyone using the normal versions of Neon.
They stopped offering downloads for the Neon LTS edition some time ago, and are soon shutting it down formally.