Four architectures – types of computing device that you can use to run Debian – didn’t make it through architecture qualification for Jessie and won’t be part of the official stable release this weekend.
It’s always difficult to see architectures go, particularly when there is still a community interested in maintaining support for them. Nevertheless, sometimes a port just doesn’t have enough momentum behind it or sufficient upstream interest from the toolchain to be economical. Whether a port is of sufficient quality for stable is a complex decision involving several different teams – Debian System Administration, the security team, those who maintain the auto-builder network, the release team, and so on – and will continue to affect them for several years.
It’s not all gloom though: new architectures in Jessie includeÂ arm64,Â ppc64el (a 64-bit version ofÂ powerpc) andÂ s390x (replacing Wheezy’sÂ s390). Architecture rotation can be healthy.
(source:Â https://release.debian.org/jessie/arch_qualify.html.Â ia64 and s390 were planned retirements following Wheezy, leavingÂ hurd-i386,Â kfreebsd-i386,Â kfreebsd-amd64 andÂ sparc which didn’t satisfy all qualification criteria by the time decisions had to be taken.)