TIBCO Silver Fabric 5.8.1 HF-2 has been released
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Introduction

Hotfixes are cumulative. 

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Affected Components for Silver Fabric 5.8.1 HF-2

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


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Closed Issues in Silver Fabric 5.8.1 HF-2 (This Release)

Broker
SF-10328
Fixes an issue of ClassCastException thrown while calling GET users/sessions 
rest service.

CLI
SF-10322 (customer reported as SR 01535301)
Fixes an issue with uploading Grid Libraries and Component archives using the CLI.

Note: Java8 and above is required to run CLI commands.  

VirtualRouter
SF-10318 (customer reported as SR 01535301) 
After applying Silver Fabric 5.8.1 HF1, the internal VirtualRouter was not allowed
to log in, with the error FabricClientVersion=5.8.1.26 for admin does not match 
expected: 5.8.1.33 FabricClientVersion=5.8.1.26 for admin does not match expected: 5.8.1.33.
 

TIBCO Silver Fabric 5.8.1 HF-2 has been released

The hotfix can be downloaded from the TIBCO Support Customer Portal Web UI, using your username and password for the TIBCO Support Web.
Once logged in, the hotfix can be found in the Downloads>Hotfixes Menu under:
AvailableDownloads/Silver/Fabric/5.8.1/

Alternatively you can use the direct link below to access the Hotfix,
https://support.tibco.com/s/hotfixes?id=a011a000009RyBKAA0

Refer TIB_silver_fabric_5.8.1_HF-2_readme.txt  attached to this article for full details on  the installation instructions  and fixes included in the previous HFs.