The v21.1 update, released in June 2021, focused heavily on workflow consistency and "modifier" behavior:
: Added support for IFC 4 classification and export, improving compatibility with other BIM software. SketchUp ProВ 2021 bezmaksas lejupielДЃde (v21.1....
: Improved logic for how SketchUp decides which side of a face is "front" when drawing on the ground plane. The v21
: Instead of holding down keys (like Ctrl for Copy), many tools now allow you to tap a key to toggle a state (e.g., Move to Copy) and keep it active for multiple operations. The v21.1 update