Just to confirm, this does not change the specs of the coin at all, is compatible to the original client and will not cause a fork? If so, great!!!
-edit- sent a little thankyou!
Yes, everything is the same except the checkpoint, QR codes and heartbleed changes. No forking of the blockchain.
I tried to compile the windows wallet using the same versions of the libraries to keep everything compatible. I ran the new wallet on my original wallet.dat and blockchain files and they seem to be compatible.
Note: As a precaution, always backup your wallet before making any changes!