Final answer:
After Visual Studio Enterprise subscriptions expire, developers typically lose the right to new updates and versions but may retain some usage rights. Check the specific Visual Studio subscription agreement for details on perpetual use rights.
Step-by-step explanation:
The question concerns the usage rights retained by developers after their Visual Studio Enterprise subscriptions, originally purchased through an Enterprise Agreement, have expired. Generally, when a Visual Studio subscription expires, the rights to use certain software also end. However, there are exceptions for software obtained during the subscription period, which might be covered under perpetual use rights; this allows the developers to continue using the version of the software that was available to them while their subscription was active. Nonetheless, access to future updates, upgrades, or new versions is not permitted without an active subscription. It is important to refer to the specific terms and conditions of the Microsoft Visual Studio subscription agreement for the precise details regarding post-expiration usage rights.