Hello! There’s been a lot of work in GNU Mach since 1.3, and there’s still a lot in the pipeline.
What about restarting the release train by releasing roughly the current state of ‘master’ as 1.4, along with MIG 1.4? We could imagine that 1.5 would add x86_64 support, user-level driver support, and perhaps 1.6 would bring renewed SMP support. The advantages would be mostly non-technical: publicity, and a new concrete road map. Thanks, Ludo’.