Secure Computing did this once with their firewall. It very clearly stated in their ads and packaging that it would work on a particular version of Windows NT,

Secure Computing did this once with their firewall. It very clearly stated in their ads and packaging that it would work on a particular version of Windows NT, but people who paid found out the hard way that a future version of the software would work on NT, but the current one didn't yet - they were hoping we'd just wait for a future product patch. No thanks. My customer got their money back for the firewall, but as a consultant, having recommended it in the first place, and trying to install it only to be told by their own support that there was no way to make it work on the current version of NT until a patch was available, was extremely embarrassing. I've never recommended their products again, since their trap left me looking like an idiot.