Today is an important date. After more than one year of development, Silverpeas 5.15 is finally out. This version should be the last one of Silverpeas 5. Indeed, Silverpeas 5 is built on a now deprecated and old technologies and it is time for Silverpeas to take a new milestone. In parallel to the 5.15, we have also been working on the next major step in the life of Silverpeas: Silverpeas 6. In fact, all the features you'll find in 5.15 were merely backported from the future 6.0. This is why Silverpeas 5.15 is rich in features and has therefore taken more time to be ready. The main difference between the two versions is that in 6.0, Silverpeas will be based upon more recent and hence modern technologies from which we are expecting both to be more productive and to better answer to our users' expectations.