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[[!meta copyright="Copyright © 2013, 2016, 2017, 2018 Free Software Foundation,
Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]
[[!tag faq/support]]
[[!meta title="Is there a 64-bit version?"]]
There are currently no plan for 64-bit userland, but there are plans for 64-bit
kernelland with 32-bit userland, which will notably permit to efficiently make
use of more than 2 GiB memory and provide 4 GiB userland addressing space.
[[Work on this|open_issues/64-bit_port]] is currently in the master-x86_64 and
port-amd64 branches for GNU Mach.
That being said, you can always run a 32-bit version on a 64-bit machine, it
just works, processes are just limited to a couple GiB available memory.
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