Currently I am querying the build definitions by project and getting all of them. My code (simplified) looks something like the following
var server = new TfsTeamProjectCollection(new Uri("url"));
server.EnsureAuthenticated();
var buildServer = (IBuildServer)server.GetService(typeof(IBuildServer));
var buildDefinitions = buildServer.QueryBuildDefinitions("Project_name");
What I want is to get only the build definitions added after a particular date, say last Friday.