There's only one package being upgraded today, which is mercurial. This small changes follows the previous updates, which only updates small amount of updates, since it's RC. We don't want big changes which would take more testing time and sacrificing stability and security of the whole system.
Also, in previous update, kdegraphics has been patched in order for gwenview to be able to save the image after being rotated. I have had this bug for some time and it has been fixed now