As Jira has been currently updated the navigation bar at the top has been moved to the side. In the new navigation bar “Release” can be found as follows:
Navigate to the project: Open the Jira project where you want to find the releases. Near to the project name you could find 3 dots, click on it and select the option “Project Settings”.
Locate the Release Section: In the Project navigation menu look for the “Versions” option and click on it.
View Release details: Once you click on the “Versions” section, you will see a list of all the versions associated with your project. Here, you can check the progress of each version, view related work items, and manage approvals if necessary.