Solidworks 2020 [hot]

The customizable "S" key radial menu became context-aware. In SolidWorks 2020, if you were in a sketch, pressing "S" showed sketch tools. If you were in a fillet feature, pressing "S" showed fillet options. This reduced mouse travel across the top ribbon, speeding up command execution by an estimated 15-20%.

As mentioned, Detailing Mode was the headline act. How it works: solidworks 2020

The "Save As" dialog got a complete facelift. When you saved a part as a copy, a side panel now showed all the drawings and assemblies that referenced the original file. You could then check boxes to copy those files too, or break the links. This prevented the classic disaster of saving a new part, only to realize the original drawing now points to the wrong model. The customizable "S" key radial menu became context-aware