policy.xml

@@ -498,8 +498,12 @@ rm ../*_source.changes</programlisting>
 			<para>
 				Debian Med operates a <ulink url="https://launchpad.net/~debian-med/+archive/ppa">Personal Package Archive</ulink> (PPA) on Launchpad, where packages are backported for Ubuntu.  There is currently no team policy on what to build.
 			</para>
+			<para>
+				Because the space in the PPA is currently limited (4.0 GiB), we keep in the PPA only packages for <ulink url="https://wiki.ubuntu.com/Releases">still maintained</ulink> LTS Ubuntu version. Packages targeting an older Ubuntu will be removed.
+			</para>
 			<para>
 				Please keep in mind issues like the possibility to upgrade to the next Ubuntu stable release.  Packages that are backports can be made <ulink url="https://www.debian.org/doc/debian-policy/#version">inferior in version by using a tilde</ulink>.  If the package contains additional development, a version number without the tilde will make it higher, but not as high as the next Debian revision.  For example: <code>2.12.0-1~natty1</code> (backport in PPA) &lt; <code>2.12.0-1</code> (from Debian in Ubuntu) &lt; <code>2.12.0-1natty1</code> (in PPA, containing additions) &lt; <code>2.12.0-2</code> (from Debian in Ubuntu).
+                                Please follow the Ubuntu's <ulink url="https://help.launchpad.net/Packaging/PPA/BuildingASourcePackage#versioning">recommendations</ulink> for versioning packages in PPA.
 			</para>
 			<para>
 				Packages sent to this PPA may be kept as branches in our repositories.