Registered users can download PluriBASIC 6 from here:

This update has many updates regarding PHP wb scripts, tons
of new features (not present in PluriBASIC 5.0) and stability improvements.
The IDE is more complete and offers better support for the DLL features.

This version also offers some improvements for compiling executable
modules (32bit and 64bit), but the biggest update is for web scripts. If you
dont use PluriBASIC for writing wb scripts, you can omit this update.