Hello, I found a link in the FAQ about upgrading to -stable branch pointing on the upgrade guide 5.3 -> 5.4. I think this should point on 5.4 -> 5.5.
Here is a patch. --- stable.html.old Mon Jul 14 00:30:30 2014 +++ stable.html Mon Jul 14 00:31:08 2014 @@ -90,7 +90,7 @@ <p> Do not attempt to go from one release to another via source. -Instead, please visit the <a href="faq/upgrade54.html">upgrade guide</a>. +Instead, please visit the <a href="faq/upgrade55.html">upgrade guide</a>. Also, you cannot go backwards, from -current back to -stable, because of library versioning problems and other changes.