Will Unity 2017 open a project from Unity 4, and if so, will there be any issues? Or should I install Unity 5, open the Unity 4 project with Unity 5 and save it, and then open it in Unity 2017?
Thank you.
In theory the latest Unity version should have the best conversion of old methods, so just go straight to that. And always back up stuff first.
had few times upgraded very old projects, worked better if opened some middle version(s) first.
(went completely broken if opened too new version straight away, but could had been just some random issue…)