To update the software a JTAG programmer is required. I recommend an Altera USB Blaster or clone.
There is an umarked 6 pin JTAG programming connection on the upper right hand side of the board. Pin 1 is marked.
The Altera USB Blaster requires the Quartus II Progammer Software for Windows to be installed. The download is 185 MB and installation requires 700 MB of hard disk space. The USB Blaster drivers are included in the package (find them in the folder after installation).
Quartus II Progammer Software for Windows - Version 13.1 - working on Windows 7 and XP
8/11/2017- Added software v1.2. Changed clock settings in the assignment editor. This may solve the colour error problem (most noticeable on gradients) that some people have reported since v1.1 was released.
20/7/2017 - Added component overlay download.
9/6/2016 - Page Created.