I have downloaded the 64-bit version and it was the last version (which is version 13.0.3) about two months ago, while I had formerly downloaded the 32-bit version and it was not the latest version. And when I asked about this from Optiwave, I did not receive an assured reply about both versions being v13.0.3. So you could either download the 64-bit version or ask Optiwave about this. Maybe it will be fixed.