. For open-source users, the official path is to use the online installer or compile from source. Stack Overflow Official Availability and Licensing Commercial Users
If you have a commercial license, the process is straightforward: Log in to your Qt Account portal . Navigate to the section.
If you are building a production web-facing application, consider paying for a commercial license or moving to Qt 6. However, for legacy hardware, internal tools, or embedded systems—this is the gold standard.