Windows phone OS 7.0 vs OS 7.1
mpns, operating-system, push-notification, windows-phone-7
Solution
7.0 is the very first version of Windows Phone 7 with no updates. 7.1 is the internal version number for Windows Phone 7.5 (codename for this was Mango).
All new phones that run Windows Phone 7 are 7.5. Most phones have an update available to update from 7.0 to 7.5.
Considering that there are very few pure 7.0 phones left, I would compile your app for 7.1 internal version, which is 7.5 external version.
Also, I am not sure even if the Windows Phone Store even accepts pure 7.0 apps anymore either.
Problem
I am creating a new WP7 application on visual studio and the first thing it asks me to do is to target a WP OS version. I have 2 options , 7.0 and 7.1 . I am trying to make a simple app , implementing push notifications. I see on the tutorial from microsoft that is for OS 8.0 and 7.1 . What does that mean? That it wont run in OS 7.0 if i choose 7.1? IF i develop it for 7.0 will it work at all and if yes will it run on 7.1 ?