I have two node RAC with 11g(184.108.40.206) on Windows 64. I would apply latest patch on this existing setup. I have verified in Oracle support and no interim patch available for 220.127.116.11. But I could see 18.104.22.168 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:
- 22.214.171.124.29 - 18075406
- 126.96.36.199.3 - 18223971