Please see below for the Day One patch notes for DiRT Rally 2.0. This is v1.1, but will be pushed live to PlayStation users as v1.03 - just something to be aware of.
Improved visual quality of tracks
Improved placement of reset lines in tracks
Updated car model quality
Additional sponsors added to vehicles and trackside hoardings
Online connectivity improvements to My Team via RaceNet and in title fixes
Network connectivity improvements and bug fixes for non-RaceNet multiplayer
AI has been improved in all game modes
Additional new audio lines for non-English co-drivers
Quality of life improvements to My Team
Assorted big fixes
UX refinement for Custom mode
Addressed general stability issues throughout title
Improvements and corrections to text
Please note that we are aware of the RaceNet connectivity issues and Xbox One Deluxe Edition unlock problems, but if there's anything else you feel has slipped through the cracks otherwise, please report those issues here.