Download the latest demo version, and try out without any obligation.
Download the latest user's manual, to see operation in advance.
You can use an old version v184.108.40.206 or earlier release to get your interface details if you are interesting in upgrade.
Just take a screenshot for me when the settings TAB is selected, and I can see your registered name (16 letters and/or numbers) and Serial number like RSxxxxxx (2 letters and 6 numbers) Above 2 information is the key of upgrade.
If you lost your old UltraProg software please download below mini tool, which can read out your interface details and attach them into an e-mail.
New drivers released by FTDI at 12th of November 2021, please get from here: