JBoss Application Server 5.x 

JBoss Application Server 4.x 

• Solaris OS on SPARC and x86 platforms, versions 9 and 10 (32-bit and 64-bit platforms)

• Red Hat Enterprise Linux Advanced Server 4.0 and 5.0 (32-bit and 64-bit platforms)

• Windows 2003 and 2008, Standard Edition and Enterprise Edition (32-bit and 64-bit platforms)

• Minor versions of the JBoss Application Server web container are supported.

• Minor versions of the supported platforms, including updates, service packs, and patches, are also supported.