On December 11, 2007, Sun made the UltraSPARC T2 processor design publicly available under the GNU General Public License via the OpenSPARC project. The release includes:

• Verilog RTL source code of the design
• Verification environment
• Diagnostics tests
• Open source tools, scripts and Sun internal tools needed to simulate the design
• ISA specification (UltraSPARC Architecture 2007)
• Solaris 10 OS simulation images