Kubuntu 19.10 Eoan Ermine was released on October 17th, 2019 with 9 months support.
As of July 17th, 2020, 19.10 reaches ‘end of life’.
No more package updates will be accepted to 19.10, and it will be archived to old-releases.ubuntu.com in the coming weeks.
The official end of life announcement for Ubuntu as a whole can be found here [1].
Kubuntu 20.04 Focal Fossa continues to be supported.
Users of 19.10 can follow the Kubuntu 19.10 to 20.04 Upgrade [2] instructions.
Should for some reason your upgrade be delayed, and you find that the 19.10 repositories have been archived to old-releases.ubuntu.com, instructions to perform a EOL Upgrade can be found on the Ubuntu wiki [3].
Thank you for using Kubuntu 19.10 Eoan Ermine.
The Kubuntu team.
[1] – https://lists.ubuntu.com/archives/ubuntu-announce/2020-July/000258.htmll
[2] – https://help.ubuntu.com/community/FocalUpgrades/Kubuntu
[3] – https://help.ubuntu.com/community/EOLUpgrades