A lot of news about HaTeX have happened since the last time I wrote here about it. I want to sum up all of them now, with the 3.2 version release in mind.
HaTeX-3.1.0 and warnings
There was a release of the version 3.1.0 (along HaTeX-meta-1.1.0). It was announced in Haskell-Cafe .
The key novelty in this release is the incorporation of Warnings. Warnings are data generated from a LaTeX value checking. They give you information about your LaTeX value (e.g. if you skipped the document environment, or if you called to an undefined label). They are called "Warnings" instead of "Error" because they won't stop the execution.
Other new features are: Num instance for LaTeX and LaTeXT, an implementation of the LaTeX AMSThm package and a directory with examples (currently only one) shipped with the package.
The next release will be the 3.2 version.
The main new feature is a LaTeX code parser. This means you can read a file with LaTeX code and get its AST in Haskell! Although is still uncompleted and untested, I'm sure this feature will become HaTeX in a more complete library.
Before the release, I want to ask: what do you think this new version must to have?
In order to make easier collaboration of developers, I hosted the HaTeX code in GitHub . And I already receiving contributions!
It also was very useful to place all together the code repository, an issue tracker and a wiki. So, if you are interested in HaTeX, feel free to contribute by any of the ways.
A mailing list  is also open to everybody, so we can discuss there about any topic related someway to HaTeX.
I also created a Twitter account for HaTeX-related tweets .
As you can see, there are a lot of ways to being connected with this project! I have done this to make easier as possible contributions in the future.
The lack of a manual
But not all news are good! HaTeX still lacks a manual. I have been writing one, but I stopped a while ago and I'm thinking now to continue this work. Sorry for this!
Finally, I want to say thanks to all people who has contributed in some way. Thanks!
 - Announce of HaTeX 3.1.0 in Haskell-Cafe: http://www.haskell.org/pipermail/haskell-cafe/2011-December/097416.html
 - HaTeX in Github: https://github.com/Daniel-Diaz/HaTeX
 - HaTeX mailing list: http://projects.haskell.org/cgi-bin/mailman/listinfo/hatex
 - HaTeX Twitter account: https://twitter.com/HaTeX_updates