GridServer 5.2.1 Hotfix10 has been released. Here are the release notes:
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Introduction
   
This Hotfix is not cumulative.
   
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Affected Components for 5.2.1_hotfix10
   
The following components are updated by this hotfix:
   
Tomcat
   
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Closed Issues in 5.2.1_hotfix10 (This Release)
   
Tomcat
GS-18381
Apache Tomcat has been upgraded to version 8.5.95. This Hotfix will only be
applicable on Hotfix09.
   
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To download this hotfix, login to the Support Portal and navigate to Downloads > Hotfixes > AvailableDownloads > DataSynapse > GridServer > 5.2.1.