Debian 8 to 9 KDE upgrade08 Jul 2017
I am happy to report the upgrade from Debian 8 to Debian 9 was a success.
Debian 9 KDE
I made sure Debian 8 was completely up-to-date, changed my sources.list, then dropped from KDE to tty1 and ran all updates. It took some time but after a while I was ready to reboot and login to KDE/Plasma 5. I have been using this VM for a couple weeks now and have no issues to report. Debian has always been rock solid and this upgrade was very smooth. While this worked great for me I’d still advise taking a snapshot of your VM (or an image of your PC) before the upgrade just in case.
If you are looking for a good guide on upgrading check out this guide from LinuxConfig.org.