Critical Issue
After installation of the Quartus II software version 10.0 SP1, the About Quartus II dialog box should display:
Service Pack Installed: 1
However, if you previously installed a software patch to the Quartus II software version 10.0, the Service Pack Installed reported in the About Quartus II dialog box retains the version 10.0 patch number. For example, if you installed patch 0.01 for the Quartus II software version 10.0, after installation of the Quartus II software version 10.0 SP1, the About Quartus II dialog box displays:
Service Pack Installed: 1.01
.
You may safely ignore the reported version 10.0 patch number. To distinguish 10.0 patches from 10.0 SP1 patches, Quartus II software version 10.0 SP1 patches will be numbered starting at 1.101.