For legacy project recovery (not production use), the Internet Archive hosts GX Developer 8.0 educational ISOs. While not "hot," they are legal for archival if you own a physical license dongle (SW8D5C-GPPW-E).
Mitsubishi Electric no longer sells or officially distributes Version 8, as it is end-of-life. However, legitimate access is still possible through two channels:
Q1: Can I run GX Developer Version 8 on Windows 11?
Q2: Is there a free version for hobbyists?
Q3: What is the difference between Version 8 and Version 9?
Q4: My machine is offline. I need the software now. What do I do?
Released in the mid-2000s, GX Developer V8 served as Mitsubishi’s flagship programming software for their entire PLC range. Unlike its successors, V8 maintains a classic, no-frills Windows interface (compatible with Windows 98 all the way to Windows 10, with caveats).
Version 8 is often sought because it was the last release to fully support: