The 2.3 client also had a few changes with its stats collection timers, which caused the real-time network graph to have gaps with some users. This has also been fixed in 2.3.1.
Other Changes
There have been a few other fixes, for the entire list you can check out the change log below: WhatPulseEdit descriptionwhatpulse.org
As always, you can download this update from our download page, or you can use the updater to get it.