In order to provide our customers with the most secure experience and maintain our compliance with the PCI Data Security Standard (PCI DSS) for safeguarding payment data, Zendesk is announcing the deprecation of TLS support version 1.0 and 1.1 from June 14th onwards. As a result of the change, Zendesk will no longer operate on older browsers for admins, agents and users when support for TLS version 1.0 and 1.1 is deprecated. This change also impacts the mobile web versions of the products.
To continue to securely access Zendesk, users must use a modern browser version that supports TLS version 1.2 or above to access Zendesk after June 14th. The minimum browser versions include browsers such as Internet Explorer 11, Mozilla Firefox 27, Google Chrome 30 or Apple Safari 7. iOS 5.1 and Android 5 Lollipop or later will be required to connect to the mobile web versions of the products.