The VDA upgrade service is a new feature we rolled out earlier this year to aid customers in keeping their Citrix Virtual Delivery Agents (VDAs) up to date with the latest features, functionalities, and fixes. With the VDA Upgrade service, administrators can improve operational efficiency by shifting VDA updates from manual or complex processes to automated processes that Citrix manages. We are continuing to deliver improvements to this service with our new releases. Proxy support enables customers to use this service when the VDAs are behind internet proxies. Local file share support enables customers that have air-gapped environments to direct their VDAs to a local file share and pull the latest VDA installer locally – no need for internet access. Lastly, new upgrade fail-safe capabilities allow administrators to configure an exit strategy during upgrade issues by setting concurrency levels and failure thresholds. These features are in the process of being released to Citrix DaaS.