[microtonal]

Yes, that's what I said, it's the definition of copyleft.

For most companies the open source version was not acceptable anyway. E.g. most customers with sensitive information (such as government organizations) require on-site firewalled installations of your software anyway. So, you either pony up the relatively high per-CPU cost, or use a less restrictively licensed alternative such as leveldb.

This change will mostly make a difference for web applications. But my point was that Berkeley DB was already licensed quite restrictively before, contrary to some people's beliefs.