Q: What is Remote Desktop Client Update v 3.8.2
Why do I need Remote Desktop Client Update 3.8.2
iMac (21.5-inch Mid 2011), Mac OS X (10.0.x)
Posted on Jan 27, 2015 2:08 PM
It's just something that comes built into every Mac. You can either download it or right click the update and choose "Ignore" or "Hide". It's a very small update that doesn't take long to download or install so it's probably easier in the long run just to click the "Update all" button in the App Store when you see more than one update available along with 10.10.2 for example.
You can also have these updates install automatically. See the bottom of the first link "App Store preferences" for how to do this:
Mac Basics: Mac App Store is the built in way to purchase and update software - Apple Support
Update OS X and App Store apps on your Mac - Apple Support
Software update, upgrade--what's the difference? - Apple Support
Posted on Jan 27, 2015 4:30 PM