Are existing patches and technology certifications affected by the new ATG Minimum Patching Baseline?
No. Existing patches and technology certifications that were tested against earlier ATG code level will remain valid options for you. For example, the 10gR2 Database certification requires 11.5.10 CU2, and this fact is not changed by the new ATG baseline. Similarly, all existing product and ATG patches that work against earlier code levels remain available. The baseline policy only affects production and testing of new patches from ATG.