Welcome to the uDig 2.0.0.Alpha1-v20131119 release.
Download the package appropriate to your platform, unzip and run:
Windows and Linux packages includes a Java Runtime so you really can unzip and run without making any configuration changes to your Machine. On Mac OSX uDig is able to check for Java Advanced Imaging and install if needed.
To get started with uDig:
This is an alpha release to ensure the application continues to function during the migration to LocationTech.
Internally the package structure has changed from net.refractions.udig to org.locationtech.udig allowing developers to upgrade their plugins in anticipation of the 2.0 release.
The 2.0 series marks the projects migration to LocationTech.