IBM Support

Web Server Plug-in policy for WebSphere Application Server

Troubleshooting


Problem

Which version of the WebSphere WebServer Plug-in can be used with which version of WebSphere Application Server?

Resolving The Problem

For all in service releases of WebSphere Application Server and WebSphere Liberty, the recommended configuration is IBM HTTP Server (IHS) 9.0 + WebSphere WebServer Plug-in (WAS Plug-in) 9.0.  
  • For WebSphere Application Server 8.5, IHS 8.5 + WAS Plug-in 8.5 is also a supported configuration. New installations should consider using the 9.0 components. IHS 8.5 will be withdrawn before IHS 9.0.
  • For WebSphere Liberty and WebSphere Application Server 9.0, IHS 8.5 + WAS Plug-in 8.5 are supported for historical reasons,  but is no longer recommended. IHS 8.5 will be withdrawn before IHS 9.0.
Additional Notes:
  1. There is no required relationship between the fix pack levels of any of the programs.  It is however recommended to keep them contemporaneous with one another (and up to date)
  2. Mixing IHS and WebSphere Plug-in releases is unsupported.  Incompatibilities may arise in the future.
History
  • 20230511: Rewrite to simplify with currently in service releases
  • 20240109: Add IHS 8.5 withdrawal information

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Document Information

Modified date:
09 January 2024

UID

swg21160581