CVS Branch Information
At any given time, there may be several active branches in Mesa's
CVS repository.
Generally, the CVS trunk contains the latest development (unstable)
code while a CVS branch has the latest stable code.
Currently (Oct 2004), the trunk is the Mesa 6.3 development code
while the mesa_6_2_branch branch has the stable Mesa 6.2.x code.
Mesa releases use an even/odd numbering scheme to represent stable/development
releases.
For example, Mesa 6.2 (0 is considered even) is a stable release while
Mesa 6.3 is a development release.
To checkout a specific CVS branch pass 
-r and
the branch tag after your CVS command.
For example 
cvs checkout -r mesa_6_2_branch Mesa will
checkout the 6.2 branch and 
cvs update -r
mesa_6_2_branch
 will convert your current CVS tree to the 6.2
branch.
Consult 
http://www.durak.org/cvswebsites/doc/cvs_5.php3#SEC54http://www.durak.org/cvswebsites/doc/cvs_5.php3#SEC54 for more on branching in CVS.
To see a list of all the CVS branches run 
cvs log README (or any
other file) and look for the section labeled 
symbolic names.
You'll see something like this:
  symbolic names:
        mesa_4_0: 1.3
        mesa_4_0_branch: 1.3.0.6
        mesa_3_5: 1.3
        mesa_3_4_2: 1.3
        mesa_3_4_1: 1.3
        mesa_3_4: 1.3
        mesa_3_4_branch: 1.3.0.4
        mesa_3_3: 1.3
        mesa_3_2_1: 1.1.1.1
        mesa_3_3_texture_env_combine2: 1.3.0.2
        mesa_3_2: 1.1.1.1
        mesa_3_2_beta_1: 1.1.1.1
        mesa_3_1: 1.1.1.1
        mesa_3_2_dev: 1.1.1.1.0.2
        mesa_3_1_beta_3: 1.1.1.1
        start: 1.1.1.1
        mesa: 1.1.1
Most will be obsolete branches.  Generally, the newer branches are at
the top.  Ask on the mesa3d-dev mailing list to learn which branches
are active.
