(Build 3713) was a maintenance update released on December 17, 2019 , following the major 2019.3 release. This specific version focused on stability and minor bug fixes to refine the massive features introduced in the 2019.3 branch. Key Features (2019.3 Branch)
The cross-platform nature (Win/Mac x64) ensured that studios could integrate it into any pipeline. Key features that defined this era include: Allegorithmic Substance Painter 2019
However, for new users or those with modern Apple Silicon hardware, the newer subscription is the recommended path forward. Allegorithmic Substance Painter 2019