How do I get this update everyone is raving about ?

You can only update it in the App Store today if you have an iPhone if not you gotta wait until Tommorrow if you have an android phone

I just went into the app store and went into updates and it popped up.

It's asking me for my credit card info that's weird

They ask you for that information just in case you decide to buy anything from the iTunes Store but if you download free apps it does not charge your credit card

look towards the bottom @stephg4 you should be able to hit skip.