Well, there are not many new developments or improvements observed as of now. Video call feature has long been made operational, So is the GIF creation.
One of the recent leaks have been suggesting that WhatsApp may soon introduce Two Step authentication. This is being done to allay the fears of privacy breaches and other security concerns. The feature is stated to be already rolled out for its mobile apps on Android, iOS and WindowsPhone. For using the feature, you will need to update your WhatsApp application. Then headover to Settings ->Account ->Two Step Verification.
You will need to link an email ID and set a six digit passcode. The Two Step verification feature has already being used by most of the tech giants like Twitter and Google. This will prevent access to your account, if someone tries to access your account by entering your phone number.
Live....and Let Live!