This version introduced the SKP 2019 file format — the last one that could be opened by both the old perpetual licenses (back to 2017) and newer subscriptions (with conversion). Many studios kept a 19.3.252 machine specifically to translate older files without triggering subscription fees.
: Improved import/export stability for AutoCAD 2018 file formats, including better handling of materials and BIM data. SketchUp Pro 2019 19.3.252
: A new selection tool that lets you quickly select everything except the currently highlighted items. This version introduced the SKP 2019 file format
: For the first time, users could assign actual dash patterns to layers (now called Tags in later versions). Upgraded Tape Measure SketchUp Pro 2019 19.3.252