Subversion client too old

This is a workaround to fix a problem I had with my svn client after upgrading to Eclipse Ganymede and Subclipse plugin last week. It is based on scattered information I found on the web and that I managed to put together. Hopefully it will save someone some time (somewhere... something... somehow...).
Basically, I had ended up with an svn client 1.4 on my system (ubuntu 8.04) whereas subclipse used a somehow bundled latest version 1.5. So everything went fine, as long as I did my svn work from within eclipse. Until one day (today) I had to do an

svn up

from the shell (we use maven modules and this time I had to update from the parent pom location). Then I got this message

This client is too old to work with working copy '.'; 
please get a newer Subversion client.

This was baffling, as

apt-get install subversion

told me that I had the latest package installed. After some googling, it turned out that svn 1.5 upgrades your working (local) files in a way that it's incompatible with svn client 1.4. To cut it short, I decided to upgrade my svn client.

Here are the steps to follow:

• At the moment, subversion 1.5 deb package is still considered experimental, so you'll need to add a line to your

  /etc/apt/sources.list

  like this:
  

  deb http://ftp.it.debian.org/debian experimental main

  (You can choose a different mirror here http://packages.debian.org/experimental/i386/subversion/download)


• Then do

  apt-get update

  to update your deb repositories


• Finally

  apt-get install subversion

  to update your svn client to version 1.5. I gladly ignored the warnings about some non authenticable packages (those coming from the experimental repository).
  

Now everything is working fine.