Unified Access Gateway | Released on 03 August 2021

Check for additions and updates to these release notes.

VMware Unified Access Gateway Release Notes provides information on the enhancements for the 2106.1 release. This page also provides the resolved issue in this release. The Unified Access Gateway 2106.1 release has been replaced by the Unified Access Gateway 2106.2 release which contains further important updates which are listed in the 2106.2 release notes. Unified Access Gateway 2106.2 or later should be downloaded and deployed to benefit from both sets of updates.

What is New in This Release

VMware Unified Access Gateway 2106.1 provides the following enhancement:

  • Security and other updates to Photon OS packages and Java versions. The Photon Linux kernel is updated to address a security vulnerability (CVE-2021-33909) and Java is updated to address security vulnerabilities (CVE-2021-29921 and CVE-2021-2388).


The Unified Access Gateway user interface, online help, and product documentation are available in Japanese, French, German, Spanish, Brazilian Portuguese, Simplified Chinese, Traditional Chinese, and Korean. For the complete documentation, go to the Documentation Center.

Compatibility Notes

For more information about the VMware Product Interoperability Matrix, go to http://www.vmware.com/resources/compatibility/sim/interop_matrix.php.

Lifecycle Support policy

For information about the Unified Access Gateway Lifecycle Support policy, go to https://kb.vmware.com/s/article/2147313.

Installation and Upgrade

To download the Unified Access Gateway, see the Product Download page.

Sizing Options

For the Unified Access Gateway sizing recommendations, go to VMware Configuration Maximums.

Technical Resources

To learn and master Unified Access Gateway, go to https://techzone.vmware.com/mastering-unified-access-gateway.

Resolved Issues

  • To determine that all services are functioning correctly, load balancers using a standard HTTP(S) GET /favicon.ico often perform periodic health monitoring of the Unified Access Gateway appliances. This health monitoring allows a load balancer to route requests to other Unified Access Gateway appliances if there is any failure. In earlier versions of Unified Access Gateway, a bug was identified where the Horizon UDP Tunnel Server component health monitoring could sometimes falsely report that a Unified Access Gateway appliance had failed even though the appliance was operating correctly. This caused load balancers to unnecessarily stop forwarding requests to the affected Unified Access Gateway appliance. The workaround for older appliance versions configured to use the Horizon Edge Server was to deactivate the UDP Tunnel Server component from the Horizon Edge Service settings. In 2106.1, the UDP Tunnel Server monitoring issue is resolved and health status logging in esmanager.log has also been updated.

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