If you have juniper devices, you should run ./daily.sh as the librenms user to fix some polling issues that existed in git for a few hours yesterday.
If you are using php 5.3, you will need to run
git pull to bring things back working again.
./validate.php to make sure things are OK.
Also, for production installs you want to minimize possible breakage on, I suggest switching to the monthly release. http://docs.librenms.org/General/Updating/
It is a good idea to have a testing server on nightlies to make sure we catch things before the monthly release.