Is Xcode 6.3 with Swift 1.0 possible?

Question

Is it possible to use Xcode 6.3 but stay with Swift 1.0?
Using the iOS 8.2 SDK does not help, and I could not find any switch for the Swift version ...

EDIT: I have an extension build in Swift 1.0 which I do not want to touch, but update my main project

Answer 1

If you're having syntax problem then you can convert it to latest syntax. Also there is no way of using 1.0 in xcode 6.3

Answer 2

No, that is not possible. Xcode 6.3 comes with Swift 1.2. If you are concerned about compatibility, you can convert your swift 1.0 code into Swift 1.2 using Xcode 6.3
Edit->Convert->To latest Swift syntax