I don't ever remeber Focus team/Cyanide bringing out season updates, i think you need to use an editor on your current database file found in my documents/pro cycling manager 2010. you can find all edit talk and editors at pcmdaily.com

downloaded the latest patch: 1.0.4.2, a few months ago, it was full of bugs and made the game almost unplayable on flat/hill stages because of weird A.I. for leadout men for the sprinters. Also breakways became predictable with always between 10-14 men and always fail. Expected a new patch to fix it...