TIBCO Silver Fabric 5.7.1 HF-8 has been released
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Affected Components for Silver Fabric 5.7.1 HF-8

The following components are updated by this hotfix:
Broker
Engine
CLI
VirtualRouter

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Closed Issues in Silver Fabric 5.7.1 HF-8 (This Release)
Broker
SF-9927 (customer reported as SR 01242011)
Bundled Tomcat is upgraded to version 8.5.8 for linux-x64 only.
Also, OpenSSL version is updated to 1.0.2j.
The license file is updated with both these changes. You can download the license with the JAR.
Note : 
Please make sure you backup all your custom configuration changes made to ${SF_HOME}/conf to a backup folder.
When you apply the hotfix, the files that are modified are backed up to $SF_HOME/webapps/livecluster/WEB-INF/uninstall/$HOTFIX_VERSION
1) The application of hotfix will replace the existing server.xml file. After applying the hotfix, you may have to merge changes (if any) manually to ${SF_HOME}/conf/server.xml.
2) Please check folder ${SF_HOME}/webapps/livecluster/WEB-INF/lib for the presence of multiple versions of fabric-commons* jar. 
It can be done by executing following command : ls fabric-commons*
If it returns multiple JAR files, keep the latest version JAR and move the other JARs out of this folder.
When you uninstall the HF8 hotfix, the symbolic links (libapr-1.so and libtcnative-1.so) still point to latest apr and tcnative libraries that were added in HF8. 
An additional manual step is required to remove the symbolic links before starting the Broker after hotfix uninstallation.
It can be done by executing following commands in ${SF_HOME}/bin/linux-x64/:
rm -rf libapr-1.so
rm -rf libapr-1.so.0
rm -rf libtcnative-1.so
rm -rf libtcnative-1.so.0

SF-9956 (customer reported as SR 00796543 and 01246778)
Prints hotfix version details in the diagnostics messages.

VirtualRouter
SF-9979 (customer reported as SR 01250099)
VirtualRouter now sets the Hostname of the machine as the Host header instead of
the IP