• No attempt to maintain some form of compatibiliy with the original
• Animosity between groups
• Fundamentally different perspectives - cf DragonFly BSD and FreeBSD

One of the mot unfriendly forks in recent years would be the NuSphere fork of MySQL - which led ultimately to the courts (but I think was settled outside court?).

The flipside to an UnfriendlyFork is a FriendlyFork.

Obviously there is also the concept of an IndifferentFork - which is the kind many people run - this where the forker does not release or if they do, rarely advertise their code, and makes no effort to maintain sensible compatibility with the central code.

-- MichaelSparks - 14 Aug 2003