If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.
Just got an email from DXO offering a discount for 7.6. Those who use it will know that it is a non subscription software but usually has an update annually. Now has a mid term discount presumably hoping to tempt stragglers who decided to miss a version.