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Question by james flowerdew · Sep 07, 2010 at 01:43 PM · versioninstall

How to install two versions of unity on one machine.

Hi,

I'm really eager to try out the beta version of unity 3.0 which I've downloaded and bought the license for, but really daren't risk the work I've done in my unity 2.6 version, and know that certain issues are very likely to arise if I open them in 3.0 (shaders terrain + shadows mainly).

I'd heard a while ago that it was possible to run two versions of unity on one machine, but have not found out how.

Can anyone help me?

Cheers,

James

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Answer by netlander · Jan 16, 2012 at 07:45 PM

I can confirm that you can install multiple versions of Unity on a PC, even on the same partition and next to each other say under c:\program files.

It's definitely a good idea to rename your installation folder from unity to say, unity-3.4.2 or whatever version that particular folder holds. then you can carry out as many other installs as you like and keep renaming the folders to stop unity and yourself from getting confused.

Watch out for the default project (angrybots) as it will ask you to replace and in case you want to keep different copies of those default projects then apply the same renaming rule and you'll be fine.

The other thing to watch out for is when you open an old project with a recent version of Unity it will upgrade the project and you might not be able to open it with the older version installed on your machine.

Hope this is helpful.

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