I want to get some new features that come w/ 4.5, but my project is 4.2.something. Do I just clone the project, or what?
Uninstall 4.2 and download 4.5 then open your project. It will ask you if you want to open it with 4.5. Click OK and done.
Btw, please dont use tags that dont make sense next time.
For some reason I am getting an email about every single one of your accepted answers Jacky…
You are following me, it’s not my fault. 
Go to my profile and un-follow me if you dont want to be notified every time i make a post. Or set your user settings so that you dont get notifications from people you follow.
who voted down my post?!?!?!?!
You don’t have to uninstall 4.2 to do this. If you right click on your .uproject for the project, you can set the default engine version to be 4.5 instead of 4.2. Alternatively, you can open 4.5 and then from within the editor, open your project.
can somebody vote up my post? I don’t know why it’s voted down.
It was me who voted down your post because it contained non-sense tags.