November 18, 2009
This is the first open source release of Diem!
A bit of history
Diem has been used for 2 years in a french agency to build dozens of websites.
In August 2009, the lead developer started to work on the fifth version, based on the symfony 1.3/1.4 branch. This new version is designed to have an opensource life.
Diem development started with symfony 1.0 on late 2007. It is opensource since August 2009, so the changelog only starts to the 24/08/09.