There has been upgrades to slim and eudev that will soon hit the repositories.
With slim upgrade, you *should* be prompted to keep your existing sim.conf. You should do so by continuing via Enter key, as the default is to keep your version of slim.conf. Otherwise, if you have set autologin, you will have to do it again.
Since eudev replaces udev, all *should* be ok, but check before blindly upgrading.
Post on the forums if there are any issues or queries.