Uploading App video preview for iTunes Connect

So I read I can use QuickTime to make a preview video for my app and upload to iTunes Connect but I need to have OSX 10.10.3 Yosemite. I currently use OSX 10.9.5 and am fearful of upgrading to 10.10.3 Yosemite because i'm afraid if I do so all my Xcode Projects files on my desktop will get deleted. What can I use to make a video of my app for preview besides OSX Yosemite's QuickTimes feature in simulator? Is there another feature i'm not noticing in Xcode 6.1's simulators that I can use for recording and editing a short video?

Not part of the sim, but what about using QuickTime Player? It has a feature to record just part of the screen. Then use HandBrake to process, etc.


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Uploading App video preview for iTunes Connect
 
 
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