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author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2022-07-09 17:50:36 +0200 |
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committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2022-07-09 18:02:34 +0200 |
commit | caa779abb6da2b98122ae06830062e59531d68bf (patch) | |
tree | 9cc6d333f2530fea76914641a103f51acb9c45fe /man/os-release.xml | |
parent | c9472f9102915758da473726b70e5a09264b43ec (diff) | |
download | systemd-caa779abb6da2b98122ae06830062e59531d68bf.tar.gz |
man: redefine SUPPORT_END= to mean one day earlier
I thought it would be nice to specify the last day of support, because I
thought it'd seem more natural. But in practice this doesn't work well, because
such a truncated timestamp is usually taken to mean midnight that starts the
given date. I.e. 2011-12-13 is a shorthand for 2011-12-13 00:00:00 and not
2011-12-13 23:59:59.999999999999. Let's instead specify that the given date is
the first unsupported day, which is meaningful for humans, and let the computer
treat it as midnight, which gives consistent interpratation.
Diffstat (limited to 'man/os-release.xml')
-rw-r--r-- | man/os-release.xml | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/man/os-release.xml b/man/os-release.xml index fd98be5b7a..c5a53ae7eb 100644 --- a/man/os-release.xml +++ b/man/os-release.xml @@ -355,9 +355,12 @@ <listitem><para>The date at which support for this version of the OS ends. (What exactly "lack of support" means varies between vendors, but generally users should assume that updates, including - security fixes, will not be provided.) The value is a date in the format - <literal>YYYY-MM-DD</literal>, and specifies the last day on which support <emphasis>is</emphasis> - provided.</para></listitem> + security fixes, will not be provided.) The value is a date in the ISO 8601 format + <literal>YYYY-MM-DD</literal>, and specifies the first day on which support <emphasis>is + not</emphasis> provided.</para> + + <para>For example, <literal>SUPPORT_END=2001-01-01</literal> means that the system was supported + until the end of the last day of the previous millenium.</para></listitem> </varlistentry> <varlistentry> |