CHANGELOG:

• Trailer ownership (read more)
• Major UI changes (Main menu, Company Management screens, Dealerships, etc.) 
• Job filters redesign
• Some of the old trailers discarded and redesigned
• Power/airlines on AI trucks added (optional)
• Rendering speedups
• Option for automatic parking brake – disabled by default

ATS only:

• New roads added: US-550 (NM), US-95 (AZ), US-191 (AZ), Clifton city (AZ) and I-580 Carson city bypass (NV)
• Remade and redesigned few places (e.g. I5-I80 interchange)
• Long 53ft trailers (40+ feet from kingpin to rear axle) forbidden in California

ETS2 only:

• Scania 2016 added to AI traffic
• B-double type trailers added
• Updated part of Germany map (read more)
• Lighting improvements (sync with ATS)
• The speed limit in France dropped to 80 KPH on some roads

Read more at : SCS Software blog