: There is a stronger emphasis on using field-proven models. The standard now references API 691 ("Risk-Based Machinery Management") to help evaluate risk in hazardous or high-pressure applications.
: Acronyms like ASD (Adjustable Speed Drive) have been standardized, replacing VFD or VSD to reduce cross-vendor confusion. api 610 12th edition pdf
Gusseting in two orthogonal planes is now mandatory for piping connections NPS 1 and smaller to prevent fatigue failures. : There is a stronger emphasis on using field-proven models