ro.build.version.codename is a new property indicating whether a platform is in its release form (value = REL) or in development (value = dev branch name such as Donut). When the codename indicates a development/preview version then the API level must be ignored and this codename is used as a unique identifier of the platform. IAndroidTarget has been changed to return an instance of a new class AndroidVersion instead of the api level directly. This class helps deals with the logic of comparing version from targets or devices. This change impacts all of the sdk manager to deal with targets identified by codename instead of api level. This in turn impacts everything that relies on the sdkmanager: ADT (build, launch, project creation), the AVD manager, the SDK updater.
Using the Eclipse projects for ddmuilib. ddmuilib requires SWT to compile. SWT is available in the depot under prebuild/<platform>/swt Because the build path cannot contain relative path that are not inside the project directory, the .classpath file references a user library called ANDROID_SWT. In order to compile the project, make a user library called ANDROID_SWT containing the jar available at prebuild/<platform>/swt.