iOS App Store shows wrong version number for my app I have a new app update that shows version number 2.5, but when you tap the app for more details and check the Information section the version number is still 2.4.2.
This is simply caching, Apple serving the same information to clients over time so as not to put additional strain on their database. I see this every time I update one of my apps.

It'll fix itself in several hours, perhaps a day at most.