Oracle WebCenter Portal 22.214.171.124 is now certified with Oracle E-Business Suite Release 12.2 and 12.1.3. WebCenter Portal 126.96.36.199 is part of Oracle Fusion Middleware 12c Version 188.8.131.52.
Oracle WebCenter Portal is certified to run on any operating system for which Oracle WebLogic Server 12c is certified. For information on operating systems supported by Oracle WebLogic Server 12c and Oracle WebCenter Portal, refer to the 'Oracle Fusion Middleware on WebLogic Server - System Certification' in the Oracle Fusion Middleware Supported System Configurations.
Integration with Oracle WebCenter Portal involves components spanning several different suites of Oracle products. There are no restrictions on which platform any particular component may be installed so long as the platform is supported for that component.
Migrating to Oracle WebCenter PortalOracle Portal entered Sustaining Support on July 1, 2017. The terminal release of Oracle Portal was 184.108.40.206. You can still download existing resources for Oracle Portal such as documentation and patches, but no new updates will be created. You should consider migrating to Oracle WebCenter Portal for ongoing new features.