Lifecycle has replaced the Lease tab which can be found within Service Definitions. The Lease element still remains in place as it sets the expiry date, but we have changed the method of applying it, this is now configured via Lifecycle policies.
Any new Service Definitions created after the November 11th 2023 release will no longer see the Lease tab, and will instead see the Lifecycle tab.
Read about Lifecycle Policies here Lifecycle Example: Archive, Wait, Delete
If you are using the Lease tab, this must be migrated over to Lifecycle by the end of 2026.