Log in at manage.autodesk.com and check the "Products & Services" tab.
Perpetual license holders need a serial number along with the product key. These can be located in the following places: autocad 2018 product key
If you're interested in using AutoCAD 2018, I recommend purchasing a legitimate copy or subscribing to Autodesk's services to obtain a valid product key. This will ensure a smooth and supported experience with the software. Log in at manage
The most significant change in 2018 was the introduction of the new DWG file format. While this ensures better data integrity and smaller file sizes, it created a compatibility rift. Files saved in 2018 format cannot be opened in 2017 or earlier versions without conversion. This makes 2018 a pivotal version for offices standardizing their file formats. This will ensure a smooth and supported experience