Whatsapp brings two major changes:
First, the minimum age for signing up on Whatsapp in the European Union will now be 16 years, earlier it was 13.
Second, User will be able to download there data they share with social messaging app Whatsapp, this feature will be updated soon in all WhatsApp user.
WhatsApp collects only that data which it needs to provide its service and is hence limited. It also does not store any of the messages or files. Even call logs are not stored in its files. The data folders will be specific to the phone numbers used to create the accounts.
Whatsapp said in the blog " In the coming weeks, you will be able to see and download your WhatsApp account information and settings. This feature, Request Account Info, will be rolling out to all users around the world on the newest version of the app."
These are fields of data that WhatsApp stores and will now share with the user are Username, Time the report was pulled, Whether user was online or offline at that point, IP address last connected from (saved for diagnostic purposes), Phone type, Profile photo, Phone numbers you upload without the names, List of groups you are in, Terms of service accepted, Blocked users.
Whatsapp clears his Facebook Connection related to data sharing "However, your WhatsApp messages will not be shared onto Facebook for others to see. In fact, Facebook will not use your WhatsApp messages for any purpose other than to assist us in operating and providing our Services"