: You will miss critical bug fixes, security patches, and official technical support.
For professional and secure use of ETABS, it is recommended to use official channels provided by : Official Software & Licensing : You will miss critical bug fixes, security
If you are looking for structural design solutions and want to compare options, you might also consider Tekla Structures or STAAD.Pro. ETABS | BUILDING ANALYSIS AND DESIGN : You will miss critical bug fixes, security