: Keys are tied to specific major versions (e.g., v24.1, v24.2).
If your subscription is active, you can generate a new key at any time in your DevExpress account. If your subscription has lapsed, you can still use the software perpetually with your last valid key , but you cannot upgrade to newer versions. devextreme license key
Then, in Program.cs or Startup.cs , ensure you call: : Keys are tied to specific major versions (e