FS 2013 R3 has just been released and is available for download. This release fixes a number of bugs that were reported since the release of FS 2013 R2 last August. For details, see the release page.
As always, should you run into problems with this or any older FS release, please use the FS forum to get support. This is also a great place to talk about things you’d like to be changed in FS – or things you like as they are now.