Serato DJ and Serato DJ Intro have both replaced by Serato DJ PRO and Serato DJ LITE. These new updates provide decent incremental upgrades that make it easy for users to differentiate the products and adds a clearer picture for the future of the Serato Software as a whole.
Serato DJ PRO & Serato DJ LITE now include a new "practice" feature that allows DJ's to use the software without connecting a compatible controller. This means that it is easier for DJ's to prepare parts of their sets and test out different mixes before going live in a performance or without the use of a controller—though, there may be an issue without having separate outputs to cue on the back end.
The Practice mode is by far the biggest update and a feature that Serato users (including myself) were waiting to see added in the next iteration.
Serato DJ PRO also has support for 64-bit computers, high-resolution display support, Performance Pad View, and overall better support, while Serato DJ LITE also has support for 64-bit computers, high-resolution display support, and a Performance Pad mode.
Check out the video announcements for the new software below.