How to determine and modify the life span of an ephemeral environment.
Permanent environments live on forever, but ephemeral environments are meant to be temporary. By default, ephemeral environments will last for 7 days in Release. If you need your environments to last longer, you can upgrade to a Premium plan and gain access to permanent environments or override the default expiration to extend the life span of an environment.
For all plans, you can extend the life of an environment by clicking Extend on the Environment Details screen, which will reset the expiration for up to 7 days. Release will send you a notification email 24 hours before your environment expires to notify you that it will expire.
With a Premium plan, you have greater control over ephemeral environment expiration. In the global Account Settings, you can switch the "Destroy ephemeral environments after no activity" feature to "Off", which makes your ephemeral environments long-lived spaces that need to be manually deleted. However, we don't recommend this for most customers, as your clusters or environment quotas can quickly become filled with stale environments. Instead, you can leave this setting on and specify how many days an ephemeral environment will last before it is destroyed. Most customers find that 7-14 days is a good ephemeral environment life span for retention and space.
You may sometimes want an ephemeral environment to persist for a much longer period of time, for the duration of a sales demo or during a large overhaul of your product for example. In such cases, you can customize an environment's expiration when you manually create a single environment. On the Environments List screen, click the Create Environment button and a modal will appear. Open the "Advanced Options" toggle to access the "Environment Persistence" settings.