I just noticed that Observium released a new Community Edition release (0.14.4) on April 1. The changes (and additions!!!) mentioned in the CHANGELOG are numerous, and include several security fixes – including for an SQL injection so it is important to upgrade your installation right away, especially if your installation is public-facing.
Upgrading, as always, is simple. Backup your installation, and then unpack the new files over the old ones
** Update several hours later **: I’ve been playing with observium for many hours now, sooo many things are fixed, improved, clearer, etc now. One of the things I am now using is the Description Parser, to label ports as Customer, Transit, Peering, Core, or Server. This also makes aggregate Transit, Peering, and Transit+Peering graphs! I have long missed my aggregate graphs from cacti, and this was available to use the whole time!
** Update several more hours later **: The most recent release is 0.14.4p1 (6th April 2014)