You can keep really up to date with the development of Mambo Open Source by obtaining the latest source from CVS.
CVS (Concurrent Versioning System) is where the core code is held. There are many tools available for varying Operating Systems that will allow you to obtain the latest version from CVS. Visit cvshome.org for more details about CVS and links to CVS clients.
In order to obtain the source anonymously (read only) you need to know the following:
CVS Server : cvs.mosforge.net
CVSROOT : /cvsroot/mambo
Module : MamboOS
User : anonymous (no password required)
If you were to connect to the CVS server via Linux command line you would issue the following commands:
cvs -z5 -d
server:anonymous@cvs.mosforge.net:/cvsroot/mambo login
(When prompted for a password just hit enter)
cvs -z5 -d
server:anonymous@cvs.mosforge.net:/cvsroot/mambo co MamboOS
If you are using the Tortoise Windows client then you would complete the checkout screen as per the screenshot below: