Hi,
KDE SC 4.13.3 is now available in kdenext unstable. Today is going to be released officially.
Regarding milou: some people has problems with it (including myself). This point release won't fix it because milou is not part of the "KDE Software Compilation", it's being released separately. Also note that it's not considered mature yet by its developers, so problems with this software aren't surprising.
Cheers.