Absolutely. You are eligible to receive lifetime free updates. You will get to download the latest version of the extension you have purchased as and when it is released.

You can get this Magento 2 RMA Extension here.

Read this guide on How to Configure Return Merchandise Authorization (RMA) in Magento 2 Store to setup this extension.

Here are the few more resource to help you get most out of this Magento 2 RMA Extension.

• How to Manage Customer Orders Returns in Magento 2
• How to Setup Order Confirmation Email in Magento 2
• Streamline Product Returns with RMA Magento 2 Extension
• How to Manage Return Requests Effortlessly with Magento 2 RMA Extension