Subdivision behaviour is different than in any other software causing compatibility issues - #15 by postrowski5 - User Feedback - Blender Developer Talk
Subdivision behaviour is different than in any other software causing compatibility issues - User Feedback - Blender Developer Talk
Problem with Subdivision Surface Modifier : r/blenderhelp
How to Use the Subsurface Modifier in Blender | Ex Nihilo Digital | 3D
Check out the key features in Blender 2.90 - BlenderNation