According to this page
Unfortunately, when I go to the download link, the link is only for Webpack 6.2SP3.
I just got my ISE 6.3 evaluation CDs (can be used either as a 60-day trial for Foundation ISE 6.3, or a unrestricted Webpack 6.3), and the CD-based Webpack 6.3 installation is limited to the XC3S400.
So is the information on Xilinx's page just plain wrong, or are there plans to upgrade BaseX 6.3 and Webpack 6.3 to XC3S1000/1500?