On the day of the new iPad, many of us also noticed that a new version of iOS has been released together with a new version of the IDE.
Many changes occurred, the most relevant in my understanding are:
- A new API will allow to mark files or directories that should not be backed up.
- Photo Stream photos can now be deleted on one device and other devices will have those removed automatically as well.
- UIKIT sees changes in the way the UISplitViewController class adopts the sliding presentation style when presenting the left view (previously only seen in Mail).
- Xcode 4.3.1 is now distributed as a single application bundle and the /Developer folder is now bundled instead of residing elsewhere on your machine.
I went through the installation of both Xcode 4.3.1 and iOS 5.1 myself quite smoothly – by the way also iTunes got updated to version 10.6 – and I am now testing my applications to see if everything goes fine as before or better.