You are using talend open studio with SVN?
So far, source control feature will be available in Talend Subscription solution not open source.
With community version, you have to integrate talend open studio with SVN by yourself.
We need install and configure an Apache Subversion (SVN) server in order to store all your project data (Jobs, Database connections, Routines, Joblets, etc.) in the shared Repository of the Talend Studio.
So far, this feature will be available in talend subscription solution not open studio.