Unified Access Gateway | Released on 6 April 2021

Check for additions and updates to these release notes.

VMware Unified Access Gateway Release Notes provides information on the enhancements for the 2103.1 release. This page also provides a list of our resolved issues and known issues. Unified Access Gateway version 2103 is no longer available for download because the 2103.1 release contains important updates.

What is New in This Release

VMware Unified Access Gateway 2103.1 provides the following enhancements:

  • VMware Unified Access Gateway 2103.1 includes a bug fix, which is documented in the Resolved Issues section.
  • Security and other updates to Photon OS package versions. This includes an update to nxtgn-openssl 1.1.1 to address security vulnerabilities (CVE-2021-3449 and CVE-2021-3450).


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

  • Edge services on Unified Access Gateway are managed by a component called esmanager. If this process on Unified Access Gateway 2103 and later fails and restarts for any reason, then when the process restarts, the process automatically attempts to restore the session state of all existing client TLS sessions used with Horizon and Web Reverse Proxy edge services. This means that in most of the cases if this failure occurs, users are not impacted. When using Unified Access 2103, sometimes this session recovery process does not record the correct session state for all sessions. Hence, it is recommended to use Unified Access Gateway version 2103.1 or later.

Known Issues

  • If a backslash (\) character is used when setting an admin password, root password, or RADIUS shared secret, then it must be escaped by using an extra backslash character. So, the admin must specify a password like Secret\123 as Secret\\123.

    Workaround:  Prefix \ with an extra backslash \ (for example, \\u).

  • When Horizon SAML 2.0 is used with Horizon True SSO to avoid the initial AD password prompt, and if the session is manually locked or locks due to inactivity, the user must either enter their AD password to unlock the session or close the client and reconnect. The Horizon True SSO unlock mechanism currently depends on Workspace ONE Access.

    Workaround: None

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