[jcranmer]

> Is this really "BSD license", if the name is off-limits? This looks like an extra clause to me.

There's actually a few licenses that are called the BSD license. In modern terms, BSD refers to the 3-clause BSD.

However, the 3-clause BSD was not the original form. It was introduced because the 4th clause was generally viewed as problematic. That 4th clause is:

> 4. Neither the name of the <organization> nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

This "weird" clause is actually the 4th clause of the 4-clause BSD. It's weird because it's extremely uncommon, but it is part of a major BSD license.

[kps]

That clause is in the common 3-clause version. The dropped clause from 4 to 3 is the one that was originally #3,

3. All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes software developed by the <organization>.

[hsivonen]

The all caps part has an extra sentence, too.