The latest stable release is the *3.4.0* : How to install it here.
Note: We just switched from BZR to Git on Github! (only to host the code and your future pull requests)
Note: this article is a translation. You can find its original version written by Fabounethere
With this new version we are now in the official repositorie of one of the biggest distros : Ubuntu !
After Suse and soon Fedora and Debian, the dock is becomign easier and easier to install which in turnr should help to make it popular.
On the applets side, Slider and Stack have been added to the plig-ins package, which means that there is a total number of plugins of ... well a lot
On the dock itslef a big evolution occured on the interface between the dock and the applets, which means that it is now possible to have several instances of certain applets. You can several clock with different time zone, you can monitor the flow of several interfaces, you have several stacks or several weblets. But most important you can have a Tux and a Wanda roaming your dock at the same time
Anoter evolution which should be transparent to the user to start with is about the themes : as of now the project has its own themes'server that can be downloaded when they are needed (as if they were on your hard disk)
Like that the collection of themes for Cairo-Dock can only increase (thanks to your future contributions )