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Abstract
IBM WebSphere Application Server Version 8.5.5.21 update install repositories for all platforms.
Download Description
Notice: Please read the important security-related information included in this document in the section and Regression List for changes with negative effects.
WebSphere Application Server 8.5.5.21 update install repository is provided as below:
- WebSphere Application Server traditional
- IBM WebSphere Java SDKs for WebSphere Application Server 8.5.5.21 👁 Image
- WebSphere Application Server Supplements
- Application Client
- Web server plug-ins
- Pluggable Application Client
- IBM HTTP Server
- WebSphere Customization Toolbox
- IBM Edge Components
IMPORTANT NOTE: |
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- Ideas and requests implemented in 8.5.5.21:
Idea | Description |
| TWAS-I-73 | Add TLSv1.2 support to JavaMail |
| TWAS-I-228 | Support for datasource Kerberos auth for XA Recovery transactions on traditional WebSphere Application Server |
- Serviceability enhancements included in 8.5.5.21:
| APAR | Description |
|---|---|
| PH25286 | A diagnostic message will be logged when a method is not found in a resource adapter |
| PH36026 | Additional informational message will be logged when nodeagent restarts unresponsive JMVs |
| PH36027 | Output message of renameNode is improved to provide more details when running against unmanaged node |
| PH36864 | CWPKI04291 warning message is corrected |
| PH37067 | CWPKI0045E message is improved |
| PH39733 | New custom property is provided to suppress automatic javacores |
- Portable Installation Manager installs for z/OS are now available starting in 8.5.5.21. See Using Installation Manager portable installs on z/OS for more information.
- Signature files are available for WebSphere Application Server releases starting with 8.5.5.21. To verify a release package, you must obtain the public key. For more information, see Verifying WebSphere Application Server release packages.
Prerequisites
Version 8.5.0.x or 8.5.5.x must be installed prior to installing 8.5.5.21.
More Information
To check for status of the product and service repositories for Installation Manager, see this .
Installation Instructions
When using the "Download Links" below, single-file downloads can be used directly as IBM Installation Manager repositories. Multi-file downloads with "part<n>
Download Package
WebSphere Application Server traditional
| Download Description | Platform | Download Links (Fix Central) |
| Application Server local repository ZIP files for Base, Express, ND, Developers, NDDMZ (Default with Java SDK 8) | Distributed | 8.5.5-WS-WAS-FP021-part1.zip & 8.5.5-WS-WAS-FP021-part2.zip & 8.5.5-WS-WAS-FP021-part3.zip |
| Application Server local repository ZIP files for Base, Express, ND, Developers, NDDMZ (Default with Java SDK 8) | Linux PPC64LE | 8.5.5-WS-WAS-LE-FP021-part1.zip & 8.5.5-WS-WAS-LE-FP021-part2.zip |
| Application Server for z/OS local repository ZIP file (includes NDDMZ for z/OS) | z/OS | 8.5.5-WS-WAS-OS390-FP021-part1.zip & 8.5.5-WS-WAS-OS390-FP021-part2.zip |
| Web Enablement for IBM i local repository ZIP file | IBM i | 8.5.5-WS-WEBENAB-FP021.zip |
Note : If you have installed and switched to SDK 7, SDK 7.1 you will need to download and apply the SDK fixpack found here: IBM WebSphere Java SDKs for WebSphere Application Server 8.5.5.21 👁 Image
| Portable Installation Manager installs for z/OS | ||
| Download Description | Platform | Download Links (Fix Central) |
| Application Server (includes IBM HTTP Server and Web Server plugins) | z/OS | was-zos-8.5.5.21.pax.Z |
| Application Server (includes SDK 7, SDK 7.1, IBM HTTP Server and Web Server plugins) | z/OS | was-zos-java7-8.5.5.21.pax.Z |
WebSphere Application Server Supplements
| Download Description | Platform | Download Links (Fix Central) |
| Supplements local repository ZIP files containing Application Client, Web server plug-ins, Pluggable Application Client, IBM HTTP Server ** | Distributed | 8.5.5-WS-WASSupplements-FP021-part1.zip & 8.5.5-WS-WASSupplements-FP021-part2.zip & 8.5.5-WS-WASSupplements-FP021-part3.zip |
| Supplements local repository ZIP files containing Application Client, Web server plug-ins, IBM HTTP Server | Linux PPC64LE | 8.5.5-WS-WASSupplements-LE-FP021-part1.zip & 8.5.5-WS-WASSupplements-LE-FP021-part2.zip |
| WebSphere Customization Toolbox local repository ZIP files | Distributed | 8.5.5-WS-WCT-FP021-part1.zip & 8.5.5-WS-WCT-FP021-part2.zip |
| WebSphere Customization Toolbox local repository ZIP files | Linux PPC64LE | 8.5.5-WS-WCT-LE-FP021-part1.zip & 8.5.5-WS-WCT-LE-FP021-part2.zip |
| IBM HTTP Server for z/OS local repository ZIP file | z/OS | 8.5.5-WS-IHS-OS390-FP021.zip |
| Web server plug-ins for z/OS local repository ZIP file | z/OS | 8.5.5-WS-PLG-OS390-FP021.zip |
| Download Description | Platform | Download Links (Fix Central) |
| IBM WebSphere Edge Load Balancer for IPv4 and IPv6 local repository ZIP file | Distributed, Linux PPC64LE | 8.5.5-WS-EDGEULB-FP021-part1.zip & 8.5.5-WS-EDGEULB-FP021-part2.zip |
| IBM WebSphere Edge Load Balancer for IPv4 and IPv6 Trial local repository ZIP file | Distributed, Linux PPC64LE | 8.5.5-WS-EDGEULBTRIAL-FP021-part1.zip & 8.5.5-WS-EDGEULBTRIAL-FP021-part2.zip |
| IBM WebSphere Edge Components Caching Proxy local repository ZIP file | Distributed | 8.5.5-WS-EDGECP-FP021.zip |
IBM WebSphere Java SDKs for WebSphere Application Server 8.5.5.21 download page 👁 Image
WebSphere Application Server Liberty 22.0.0.2 download page 👁 Image
Known Side Effects
WebSphere Application Server traditional
Please refer to Regression List for changes with negative effects.
- WebSphere Application Server 8.5.5.19 or higher does not successfully switch to bundled JDK 8 after update. See technote for more information.
- After you update to version 8.5.5.19 or higher for Linux on POWER8 Little Endian (LE) from an installation with embedded Java SDK 7.1, any existing profile that uses the embedded Java SDK 7.1 is replaced by the embedded Java SDK 8. If you were using version 8.5.5.18 with the optional Java JDK 8 when you update to version 8.5.5.19 or higher, any existing profile that uses the optional Java JDK 8 is replaced by the embedded Java SDK 8. Check here for more information.
If a WebSphere application running behind a HTTP proxy server (such as IBM HTTP Server with the WebSphere WebServer Plug-in) begins experiencing failures with client certificate based authentication, or if client IP addresses or connection information are reported incorrectly as those of the proxy server, then it might be necessary to configure the "trustedSensitiveHeaderOrigin" custom property. On WebSphere Liberty, "trustedSensitiveHeaderOrigin" is configured as an HttpDispatcher custom property, and on traditional WebSphere the property is be configured as an HTTP channel custom property. This property has a default value of "none", and it also accepts value a of "*" (all), or a comma-separated list of IP addresses. For a secure deployment in which proxy servers are used, the "trustedSensitiveHeaderOrigin" property should be configured with a comma-separated list of IP addresses corresponding to those of any WebSphere-aware proxy servers in front of the WebSphere server.
Instructions to set HttpChannel custom properties in traditional WebSphere are here.
Instructions to set HttpDispatcher custom properties in WebSphere Liberty are here and here.- Due to a side effect of PH02461, configureInterceptor command may initializes the interceptor prior to its configuration. PH07760 will fix this issue. See link for details and iFix download.
- Fix PI50993 removes external visibility to HTTPCore and HTTPClient libraries. See Security Bulletin: Apache HTTPComponent vulnerabilities in WebSphere Application Server (CVE-2012-6153, CVE-2014-3577).
- Change in IBM WebSphere Java unrestricted policy files. See this for details.
- There is a behavior change in java.util.zip.ZipFile.getEntry() from IBM SDK V8 SR4 FP10. With this release, the name of the ZipEntry instance returned from java.util.zip.ZipFile.getEntry() always ends with / for any zip directory entry. To revert to the previous behavior, set the system property jdk.util.zip.ensureTrailingSlash to "false". See for details.
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Document Information
Modified date:
28 January 2026
UID
ibm16553204