NetBSD 6.0 released. It was quite a long wait but I think it was worth it. amd64, i386 ports has better ACPI, hardware support, updated and much better Linux emulation, userland tools are updated too of course. This is probably features I admired and noticed first but it just a small fraction of all changes. Other changes for NetBSD in general and other ports you can read in release announcement. Or just download it from NetBSD mirrors and give it a try.