Haven't tired th Adreniline 18.3.1 drivers but the 18.2.2 drivers are working with 11.2 for setting the overclock/undervolt/fan settings in Claymore and are very stable.

https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Adrenalin-Edition-18.2.2-Release-Notes.aspx