AeroGear Swift libs are progressing towards more platforms support. Last week, aerogear-ios-jsonsz has lower its minimal target deployment to iOS7 and a new swift-2.0 branch is available for iOS9 (beta3) support.
What’s coming next? All AeroGear Swift libs will have a swift-2.0 branch (regularly rebased) until iOS9 is offically released, and will be finally merged in master.