Hidden away in the MyBB Blog, a significant announcement was made: MyBB will now be licensed under the LGPL. It will take effect with the MyBB 1.6.x release.

Why choose the LGPL? Well, they were in the same position as MODx, which I blogged about just a few hours ago. They didn't want to force their modification and theme authors to license their works under the GPL (or a compatible license).

I was surprised to read this, because it was only recently changed from a proprietary (but still quasi-open source) license to the GPLv3. It seems like we might be seeing a trend.

Reference