Although the current version of Hatta is quite stable, it's by no means a dead project. Development continues, both fixing bugs and making Hatta more robust, reliable and compatible with web servers and browsers, and extending Hatta with new features – although the latter is done carefully. There is also some experimenting going on, as described in Development notes.
There is also work on improving and adding Translations.
The Mercurial development repository for Hatta is available at http://hg.hatta-wiki.org/hatta-dev. You can see the changelog or clone the repository with command:
hg clone http://hg.hatta-wiki.org/hatta-dev
Some feature branches are also hosted there for development made by other persons:
You may prefer to use one of the developer forges, such as Bitbucket or Google Code. Hatta has its repository cloned to a number of places:
You can run Hatta directly with Python, but if you want to create a nice Windows or MacOS installer, see Building.
Hatta currently doesn't have any plugin system, so developing extensions may be a little hard, but feel free to experiment with the code, and don't hesitate to share your work if you come up with something good! Read more about extending Hatta.
There are plans on adding a real plugin system on Plugin Plans.
There is a Trac instance at http://bugs.hatta-wiki.org/