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authorDaniel P. Berrangé <berrange@redhat.com>2020-09-17 16:50:47 +0100
committerDaniel P. Berrangé <berrange@redhat.com>2021-01-29 17:07:53 +0000
commite6e80fcfd6c478231ac8ef9d2ec647da860252b6 (patch)
tree9ae5ca518098d08669fdbf9e752ec950808c1f6f
parent4d7beeab38e6d2d242bcf110532ff6a9b03bd53d (diff)
downloadqemu-arm-e6e80fcfd6c478231ac8ef9d2ec647da860252b6.tar.gz
docs: simplify and clarify the platform support rules
The distinction between short life and long life Linux distributions turned out to be redundant. They can both be covered in a simple way by noting support will target the current release, and the previous release for a period of two years or until its EOL. This rule can also apply to the other UNIX based distros, leaving only Windows needing a different set of rules. This also clarifies that Debian LTS is out of scope, because the LTS support is provided by a separate group from the main Debian maintainer team. Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
-rw-r--r--docs/system/build-platforms.rst63
1 files changed, 23 insertions, 40 deletions
diff --git a/docs/system/build-platforms.rst b/docs/system/build-platforms.rst
index 9734eba2f1..692323609e 100644
--- a/docs/system/build-platforms.rst
+++ b/docs/system/build-platforms.rst
@@ -25,55 +25,38 @@ software in their distro, QEMU upstream code will not add explicit
support for those backports, unless the feature is auto-detectable in a
manner that works for the upstream releases too.
-The Repology site https://repology.org is a useful resource to identify
+The `Repology`_ site is a useful resource to identify
currently shipped versions of software in various operating systems,
though it does not cover all distros listed below.
-Linux OS
---------
+Linux OS, macOS, FreeBSD, NetBSD, OpenBSD
+-----------------------------------------
-For distributions with frequent, short-lifetime releases, the project
-will aim to support all versions that are not end of life by their
-respective vendors. For the purposes of identifying supported software
-versions, the project will look at Fedora, Ubuntu, and openSUSE distros.
-Other short- lifetime distros will be assumed to ship similar software
-versions.
+The project aims to support the most recent major version at all times. Support
+for the previous major version will be dropped 2 years after the new major
+version is released or when the vendor itself drops support, whichever comes
+first. In this context, third-party efforts to extend the lifetime of a distro
+are not considered, even when they are endorsed by the vendor (eg. Debian LTS).
-For distributions with long-lifetime releases, the project will aim to
-support the most recent major version at all times. Support for the
-previous major version will be dropped 2 years after the new major
-version is released, or when it reaches "end of life". For the purposes
-of identifying supported software versions, the project will look at
-RHEL, Debian, Ubuntu LTS, and SLES distros. Other long-lifetime distros
-will be assumed to ship similar software versions.
+For the purposes of identifying supported software versions available on Linux,
+the project will look at CentOS, Debian, Fedora, openSUSE, RHEL, SLES and
+Ubuntu LTS. Other distros will be assumed to ship similar software versions.
-Windows
--------
-
-The project supports building with current versions of the MinGW
-toolchain, hosted on Linux.
-
-macOS
------
+For FreeBSD and OpenBSD, decisions will be made based on the contents of the
+respective ports repository, while NetBSD will use the pkgsrc repository.
-The project supports building with the two most recent versions of
-macOS, with the current Homebrew package set available.
+For macOS, `HomeBrew`_ will be used, although `MacPorts`_ is expected to carry
+similar versions.
-FreeBSD
+Windows
-------
-The project aims to support all versions which are not end of
-life.
-
-NetBSD
-------
+The project supports building with current versions of the MinGW toolchain,
+hosted on Linux (Debian/Fedora).
-The project aims to support the most recent major version at all times.
-Support for the previous major version will be dropped 2 years after the
-new major version is released.
-
-OpenBSD
--------
+The version of the Windows API that's currently targeted is Vista / Server
+2008.
-The project aims to support all versions which are not end of
-life.
+.. _HomeBrew: https://brew.sh/
+.. _MacPorts: https://www.macports.org/
+.. _Repology: https://repology.org/