I have two node RAC with 11g(22.214.171.124) on Windows 64. I would apply latest patch on this existing setup. I have verified in Oracle support and no interim patch available for 126.96.36.199. But I could see 188.8.131.52 available for Windows 64. I believe this is upgrade and please let me know am I correct.
You can find infromation about the latest PSU/CPU/Bundle patch in the following note:
Quick Reference to Patch Numbers for Database PSU, SPU(CPU), Bundle Patches and Patchsets (Doc ID 1454618.1)
The latest patch bundles for 64-bit Windows are:
- 184.108.40.206.29 - 18075406
- 220.127.116.11.3 - 18223971