Oracle 188.8.131.52, the second patch set for the 11gR2 database, is now certified with with E-Business Suite and is available for download in 32 and 64-bit.
You can download it from only your meta link account credential.
Patch No: 10404530
Oracle E-Business Suite Release 11i
* 184.108.40.206 + ATG PF.H RUP 6 and higher
* Linux x86 (Oracle Linux 4, 5)
* Linux x86 (RHEL 4, 5)
* Linux x86 (SLES 10)
* Linux x86-64 (Oracle Linux 4, 5)