This point increase (v22 to v23) was primairly caused by major changes to the Job Master system. More information can be found by reviewing the appropriate information on the New Features page.
There were also a number of other schema alterations that prompted this, specifically: Increased field lengths for Order.Job Number for several ERPS; increased the UOM field length to 10 in a number of tables to better support Microsoft AX; and moved the order by fields from BDCarts to BDOrderSupport.