SketchUp is defined by its Extension Warehouse. A stable API is crucial for plugins like Artisan , V-Ray , or Profile Builder . SketchUp Pro 2019 19.1.174 is widely regarded as a "safe" version for extension compatibility. It sat comfortably before the major Ruby API changes that would come in later versions, meaning that virtually all plugins developed for 2019 worked flawlessly on this specific build.
The 2019 release introduced several high-impact features designed to streamline the transition from 3D modeling to 2D documentation: Dashed Lines: SketchUp Pro 2019 19.1.174
, the 2D companion app used for generating floor plans and construction sets. Performance and Maintenance (Version 19.1.174) Released in April 2019, version SketchUp is defined by its Extension Warehouse