Support for Ubuntu Linux, preferably running native, 2nd choice under VirtualBox, 3rd choice under wine.
Linux customers want it and will pay for it.
Running under Windows means we're disconnected from our real work environment, which leads to out-of-sync files, which results in wasted time and re-dos. Windows is the number one target of 99% of the virus attacks on the planet, and we'd rather work on the more secure Linux operating system.
Please listen to your Linux customers' requirements.
I pay for and use Sketchup 2016 Pro under VirtualBox, and have done so for years. I pay for and use Vectric Aspire. I pay for and use Cutlist Plus. I pay for and use Corel, and ShopBot and GWizard (CAM software) and Mach.
All of those run under VirtualBox, which means I don't have to support another platform, especially not one running Windows! Windows is the target of 99% of the hackers on the planet, with all your data subject to ransomware if you click on the wrong link.
Oh yeah, even Windows under VirtualBox is subject to attack, so I have to pay for a couple of anti-virus programs and pay for it in terms of performance, because those programs take up a lot of CPU cycles looking for the ■■■■ those hackers want to hide on your computer.
Even if you don't support Linux natively, please support it under VirtualBox.
A PAYING Linux customer (PhD, Computer Science) who is as loyal to the software vendors as they are to me.