ACR 4.6 also introduced support for the DNG 1.2 specification, which allowed for the use of extended color profiles. This meant photographers could utilize profiles that featured two calibration illuminants and lookup tables to handle non-linear corrections, resulting in more accurate color handling across different lighting conditions.
When you download ACR 4.6, you gain access to the "Process Version 2003," which has a distinct look that many film-sim enthusiasts still crave.