There are two PPA's out there that I use for Kubuntu. They are not available yet for Eoan Ermine 19.10.

Grub Customizer
https://launchpad.net/~danielrichter...rub-customizer

Ubuntu Cleaner
https://launchpad.net/~gerardpuig/+archive/ubuntu/ppa

Do I have to wait until the author updates these programs, or is there a way to run the older version until the new one comes out?

P.S. Yes, I have noticed that Ubuntu Cleaner has an Eoan version, but it does not work. It was uploaded July 17th.