Upgrade Symfony Projects to 1.1 and 1.2

With your ongoing projects if you want to change the branch of symfony from 1.0 to 1.1 or from 1.1 to 1.2, here are links to describe how

The document on the symfony official site provides the details about what changes made in 1.1 and 1.2 branches, and what to be done to upgrade your projects

[1]   Upgrading Projects from 1.0 to 1.1

http://trac.symfony-project.org/browser/branches/1.2/UPGRADE_TO_1_1

[2]  Upgrading Projects from 1.1 to 1.2

http://trac.symfony-project.org/browser/branches/1.2/UPGRADE_TO_1_2