Sadly M30s won't get One UI 4 update.

[Faraz_F34_5G]

Though it is exactly same as M21, but it won't get any further major update since two updates are already fulfilled.

Hope Samsung includes this device for after July as all devices will be updated early next year.

[Joshuwa]

Obviously

[neeatfreak]

If it got 2 updates already, why will Samsung give another update?

[Faraz_F34_5G]

They won't.