- For licenses which have multiple versions in use, the version number is
- added, using a dash as a separator. If omitted, the lowest version
- number is implied. When the license grant permits using the terms of any
- later version of that license, the short name is finished with a plus
- sign. For <link linkend="spdx">SPDX</link> compatibility, versions with trailing
+ For licenses that have multiple versions in use, the short name is
+ formed from the general short name of the license family, followed
+ by a dash and the version number. If the version number is
+ omitted, the lowest version number is implied. When the license
+ grant permits using the terms of any later version of that
+ license, add a plus sign to the end of the short name. For
+ example, the short name <literal>GPL</literal> refers to the GPL
+ version 1 and is equivalent to <literal>GPL-1</literal>, although
+ the latter is clearer and therefore preferred. If the package may
+ be distributed under the GPL version 1 or any later version, use a
+ short name of <literal>GPL-1+</literal>.
+ </para>
+ <para>
+ For <link linkend="spdx">SPDX</link> compatibility, versions with trailing