Support Center PRC01 (v1.0.0.1815) was released on 3/04/09.

Support Center PRC02 (v1.0.0.1932) was released on 8/26/09.

Support Center PRC03 (v1.0.0.2163) was released on 4/19/10.

Support Center PRC04 (v1.0.0.2329) was released on 9/21/10. 

Support Center PRC05 (v1.0.0.2435) was released on 7/7/11.

Support Center PRC06 (v1.0.0.2512) was released on 9/12/11.

Support Center PRC07 (v1.0.0.2631) was released on 4/27/12.  To see the Release Notes for this PRC, click here.  (Includes information from PRC01 through PRC06 noted above)