We’re in the process of upgrading FreeBSD major versions. There appear to be some minor compatibility problems but nothing that can’t be fixed.
The reasons for this upgrade are that the new version (v7) contains several new features of interest. SMP scaling for 4-8 CPUs is much improved, and the network stack has several speed improvements. Sun’s ZFS file system has been incorporated and while it is still experimental, I have no doubt sysadmins everywhere will make full use of it if it is stable.
