Release Notes > Version 8.1 Release Notes > Version 8.1.16 Release Notes
Version 8.1.16 Release Notes
The following bug fixes are included in ThingWorx 8.1.16:
Known Issues and Workarounds
Platform
Due to possible security vulnerabilities, a minimum version of Apache Tomcat 8.5.42 or 9.0.21 is required. It is strongly recommended that you upgrade Apache Tomcat to these versions to mitigate known security issues with older versions of Apache Tomcat.
Bug Fixes
Platform
Related JIRA
Fixed potential security issues with the ThingWorx Composer and Mashup Builder, as well as additional issues proactively identified by vulnerability scanning software or PTC QA testing. Please upgrade as soon as possible to take advantage of these important improvements.
n/a
Fixed an issue that was causing the following licensing error: Unable to retrieve license from FNO server because Connect to fnoauth.ptc.com:443 ... failed: Connection timed out. To fix this issue, new optional parameters were added to the platform-settings.json file in the LicensingConnectionSettings section to allow a proxy server to be configured with ThingWorx.
TW-60894
Fixed an issue that was preventing a remote property value from being updated correctly.
TW-61093
WSCommunications Subsystem updates:
As part of security enhancements for the this release, ThingWorx uses version 1.7.11 of the Rhino JavaScript Engine.
In addition, three new services are available to ThingWorx Administrators to query and close AlwaysOn sessions connected to the platform. Administrators can find information about the services in WebSocket Communications Subsystem.
TW-58335
Fixed an issue with the LoadText service that was causing erroneous information to be returned when the service was executed.
TW-59196
Fixed an issue that was preventing logging levels from being viewed or changed.
TW-43984
Fixed an issue with user permissions.
TW-58647
Mashup Builder
Related JIRA
Fixed an issue that was causing style property editors to disappear when style properties were modified.
TW-60057
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