A few days back Apple released the new version of SDK for iOS 4.0.1. The SDK is now available for the iPhone developers to be downloaded freely. The new SDK 4.0.1 has been upgraded with some features to support new firmware version and other enhancements and tweaks as well.

A full change log for the new SDK has been published by Softpedia which shows the details of the improvements:

• Support for iOS SDK 4.0.1 to target iPhone / iPod touch devices updated to iOS 4.0.1
• Auto-provisioning of new devices – click “Use for Development” to add device to portal
• Xcode will automatically send your device ID to the Provisioning Portal
• A global provisioning profile including this device will be downloaded to Xcode
• All team members can develop with the new device once Xcode refreshes
• Use “Export Developer Profile” to backup developer certificates and profiles
• Menu item: “Upgrade Current Target for iPad…” to convert to Universal app
• Base SDK is set to iPhone SDK 4.0
• iPhone OS Deployment Target is set to iPhone OS 3.2 or earlier
• Targeted Device Family is set to iPhone/iPad
• For iPhone-only, use iPhone SDK 4.0 and target iPhone OS 4.0 or earlier
• For iPad-only development, use iPhone SDK 3.2 and target iPhone OS 3.2
• The LLVM compiler and LLVM GCC now support building with iOS SDK 4.0

One of Apple’s spokesperson addressed a tightly packed press conference in Cupertino, California to explain several issues with iPhone and iOS 4.0.1. Apple claimed that iPhone 4 does not have as many issues as believed, but it’s not “perfect” either. However, experts are hopeful that iPhone developers will get it easier to fix the issues with iOS 4.0.1 SDK.