A week after the Xperia 5 got its Android 11 update, its successor the Xperia 5 II is also getting the latest update. The new firmware bears the 58.1.A.1.178 build number and is seeding across Europe, Russia and Asia. The new update comes in at just 710MB in size.
You should be getting the standard Android 11 additions like chat bubbles, overhauled notifications management and one-time permissions among others. Like with the Xperia 5 update, the changelog here does not reveal the full list of changes, nor does it confirm the security patch details.