All releases in the 3.x series are named after types of toothpaste.
This represents the first public stable release of tollgate (formerly portal2). Changes from 2.8.3 (September 2010):
These are changes which happened before the public source release of tollgate, when the project was still named “portal2”.
First versions 2.0 - 2.2 were from October - December 2008. These were often pulled shortly after the start of the LAN due to bugs. It was later found that many of these problems were related to faulty networking equipment. The equipment has since been replaced.
The system was implemented due to issues with the previous WiFiDog-based setup (GLaDOS).