When transforming/rotating/scaling/extruding/chamfering/Shelling/... scene items by draging either in viewport or in a control, to achieve fine adjustment, press down and hold Ctrl key during the operation.
Edit > Options > File Format Options > dxf > Import lines and isolated vertices. POLYLINE from dxf will be converted to spline objects. The isolated vertices will be wrapped into an object called "DXF_ISO_Verts_Only". Faces should be created base on these isolated vertices so they can be used as snapping objects for precision modeling.
Splines can be exported to dxf as poly lines.
View > Object Shading > Show Edges On Frozen.
Universal Loop Selection(Range/Gap) is improved. If the existing selection is only one subobject, whole mesh selection grow or edge loop selection will be performed. This new feature can be useful for tablet pen users.
View > Use World Space Navigation (Selected). Toggle the flag of the current selected viewport which decides using World space or Workplane space as navigation space. This option can be useful for some viewports to have World space navigation while others have Workplane space navigation.