Where is that? I probably just forgot to update a doc. You need 4.0.4CR2 for the branch.
=== Installing in an EXISTING JBoss Application Server ===
This release requires JBoss 4.0.3SP1 or later with EJ3 RC5-PFD patches (included in 4.0.4+). This distribution
includes 4.0.4RC2. On the next screen you will be asked for your Installation Directory. Select the
JBoss Application Server's HOME directory (aka JBOSS_HOME) where you find the bin and server sub directories.
Although it is possible to remap these, the installer assumes the default directory structure is used.
=== Installing with a NEW JBoss Application Server ===
This release includes JBossAS 4.0.4RC2. Merely select the installation directory, accept the
JBoss Application Server pack and continue. You should use "default" as your server configuration. If you
need a different JBAS configuration for integration with other components, it is best that you install in an
existing/configured by you instance. We have thinned out alternative configurations in order to keep the
size of the download relatively reasonable.