LaTeX3 Development Code
Some of the current LaTeX3 development code is held under version control in a SVN repository and can be accessed publicly via a web interface, where it can be downloaded as single files. However, you might prefer to get hold of the files via anonymous SVN access in which case you can get a working copy from the repository at https://latex-project.org/svnroot/experimental/trunk/ using a Subversion client.
Please remember that this material is intended only for experimentation and comments; thus any aspect of it, e.g., the user interface or the functionality, may change and, in fact, is very likely to change. For this reason it is explicitly forbidden to place this material on CD-ROM distributions or public servers.
These concepts, as well as their implementation, are under discussion on the list LATEX-L. You can join this list, which is intended solely for discussing ideas and concepts for future versions of LaTeX, by sending mail to listserv@URZ.UNI-HEIDELBERG.DE containing the line
SUBSCRIBE LATEX-L Your Name
Listserv web interface
There exists a web interface to the list that can be used to read through the posts sorted by topic and month. By default this is available to the general public in a read-only mode. If you like to be post using this interface, you have to be subscribed to the list and you need to log on (which is an option on the page).
This list is archived and, after subscription, you can retrieve older posts to it by sending mail to the above address, containing a command such as:
GET LATEX-L LOGyymm
where yy=Year and mm=Month, e.g.
GET LATEX-L LOG1703
for all messages sent in March 2017.
Gmane also hosted a web interface, including archives, of the LATEX-L list but this became unavailable after that site changed ownership: http://news.gmane.org/group/gmane.comp.tex.latex.latex3
If that state continues much longer we may have to give up hoping and remove the above link (for now 2017/04) we keep it listed even though it doesn’t work.