Since the default Java implementation on Linux machines has moved on past Java 8, I've created an AppImage that should allow you to keep using the current release. I'd like to invite anyone who would like to Beta test it to give it a spin by downloading from https://www.dropbox.com/s/25we2cz0ukc4bor/OpenRocket.AppImage?dl=0 making the downloaded file executable, and running it. Some notes: You are welcome to unpack the AppImage with the command OpenRocket.AppImage --appimage-extract to verify the contents. You must have FUSE (Filesystems in User Space) version 2 on your computer to execute this (or indeed any) AppImage. If you don't have it, you'll get an error message. If you've got a *really* old version of FUSE, you'll get a warning about some operations possibly not working; my experience to date has been that everything needed by this AppImage works. If I've failed to include a needed library for your computer, the most common symptom is a completely silent (and therefore unhelpful) failure to execute. If you get this, please run it with OpenRocket.AppImage -log >& logfile and email me the resulting logfile at firstname.lastname@example.org Please let me know how it goes!