I currently have Vegas Pro 12 and looking to upgrade to Vegas Pro 18. Will I lose Vegas 12? Will I be able to go back to Vegas 12 to alter any previous projects or will Vegas 18 adopt those Vegas 12 projects? Thank you!
No you won't lose 12, both will coexist.
Newer versions of Vegas can open older projects but not the other way around. Because of that I would copy any project files you may want to edit again in 12 and add something like VP18 to the file name. However once you get comfortable with VP 18 you may never use 12 again so don't have to worry about it (I upgraded machines and didn't bother reinstall 12).
Legacy versions of VP do not have to be uninstalled or deactivated and will co-exist without issue with the newer versions.
VP project <.veg> files are upward compatible as well but not the other way around. For instance, a VP-12 project file will open in VP-18 but a project saved with VP-18 will not open in VP-12.
Remember that if you have older (external) plug-ins, they might not work in Vegas 18.
New Blue Titler Pro For Sony Vegas was included with Vegas 12, and is probably not compatible with Magix Vegas 18.
My project file naming convention:
V6 Project name
V12 Project name
V18 Project name
Jøran Toresen
run the trial before you make the buy
Make sure you download the demo first, and make sure your system meets the requirements, as they've gone up considerably since VEGAS 12.