Spaceclaim EULA

Section 3 (c) of the Spaceclaim EULA reads:

Limits With Respect to Earlier Production Versions. In no event will SpaceClaim be obligated to provide support with respect to a production version of the Software more than three (3) months after a subsequent production version of the Software has been released by SpaceClaim. Production versions will be identified by the year following the product name (e.g., “SpaceClaim Professional 2007”). A new production version within the same year will be designated by a “+” appended to the year (e.g., “SpaceClaim Professional 2007+”). SpaceClaim shall be the sole determinant of what constitutes a new production version.

Only 3 months? I thought the fashion nowadays was to only support 2 or 3 versions earlier than the current one.