As of this year, the "new" in "sdy trainz new" points to several significant updates. Here is what the community is currently talking about:
As the Trainz platform continues to evolve toward more sophisticated simulation of environmental effects and locomotive physics, creators like SDY Trainz provide the essential assets that bridge the gap between a "game" and a professional-grade railroad model. Their commitment to accuracy in the "new era" of simulation ensures that railfans have access to the most current and specialized motive power available today. At The Railyard: Trainz Railroad Simulator 2019 Review sdy trainz new
: Specialized packs for major Class I railroads (Union Pacific, BNSF, CSX, and Norfolk Southern), often including custom sound sets and cab views. As of this year, the "new" in "sdy
: A recent variant of the Victorian Railways C Class locomotives purchased for heavy freight haulage. At The Railyard: Trainz Railroad Simulator 2019 Review