That blog post is badly worded and your interpretation of it is incorrect.
This only applies to a New V6 license purchase, not an upgrade.
If you buy a V6 license, you can also get a linked V5 for Windows or V5 for Mac license, but Not both.
The idea is intended to solve two problems:
- Some plug-in are not yet available for V6 and a few will never be (like T-Splines)
- The V6 license is a “universal” license in that it will work for both Windows V6 and Mac V6 when it is released in the future.
The V6 Windows and V5 must be installed on the same computer. It is Not two separate licenses. It is the equivalent of having purchased a V5 and then upgraded it to V6.
The links are on the Support page:
