Anonymous readers wrote that "Debian supports many CPU architectures and they are removing support for the sun/oracle SPARC architecture." By the end of the week, Debian had removed SPARC from their unstable,experimental and jessie-updates warehouses (archive). A few days ago, Debian developer Joerg Jaspert wrote, "Since SPARC is no longer the most dynamic architecture, neither in Jessie nor in later versions is (not in the Jessie and unlikely to is in stretch), I'm going to get rid of it from the warehouse this weekend. (This does not prevent it from returning in a SPARC64 way!) More accurately, I'll make it from: Unstable,experimental,jessie-updates manual removal. "Debian SPARC support will continue to exist in the released version of the operating system." Jaspert is doing what he says, and has finished SPARC's removal this weekend. "
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Debian Removal SPARC Support