After upgrading to TV 4...

[huskermark2010]

Can I safely uninstall version 3 after purchasing the upgrade to version 4?

 

[phd]

yes you can

 

[TimA-C]

If you're concerned then you could always install V4 in a different directory and have both of them available to you.

 

[Danr]

If you're concerned then you could always install V4 in a different directory and have both of them available to you.

The only issue you might have is that the batch processor (COM interface) uses common keys and will default to the last installed or run version.