Sitecore TDS is licensed per developer and is available as an annual subscription as of 8/23/2019. Once each team member owns their own TDS license, teams are permitted to install the tool in multiple environments (including personal machines, build servers, and VMs) at no extra charge. Sitecore TDS subscriptions include access to new releases, technical support, and guaranteed compatibility with the latest versions of Sitecore and Visual Studio. For full licensing details please review our end user license agreement
. Your license subscription may grant you rights to older versions of our software. If you opt to use a previous release your license remains subject to the terms in our latest EULA.