This would probably make sense on EC2 instance where it comes by default with mysql 5.5
First shutdown the mysql server and then go ahead and move the mysql 5.5 to new folder
sudo mv /var/lib/mysql /var/lib/mysql55
Then grab the tar from Here
Once you download the tar file
sudo tar -xvf yourDownloadedTar.tar sudo rpm -ivh MySQL-shared-5.6.17-1.el6.x86_64.rpm sudo rpm -ivh MySQL-client-5.6.17-1.el6.x86_64.rpm sudo rpm -ivh MySQL-server-5.6.17-1.el6.x86_64.rpm
yup.. that would be it.
Then restart the mysql and it shall be updated