Kubuntu 18.04 Bionic Beaver reaches end of Kubuntu support

[Chris Luck]

On 02/05/2021 17:45, Rik Mills wrote:

> Kubuntu 18.04 LTS was released in April 2018, and reached ‘End of Life’
> for its 3 years of flavour support on 1st May 2021. All Kubuntu users
> should therefore switch to a newer supported release.

I'm a little puzzled as to how I should interpret that statement.
When I first read it (a day or two after it was posted) I opened Muon to 
see if there were any updates but the connection to the repository 
seemed to be dead. However a few days later I got an update (I forget 
the details).  Since then I must have had 6 or more updates including 
LibreOffice 7.1.3.2, Firefox 88.0.1 and assorted others.

So, Rik, can you tell me what does 'End of Life' mean here?

Chris Luck
p.s. I'm not intending to upgrade any time soon.