If you have a device which decodes MQA in hardware, such as the 818v3 or an Explorer2, any software which feeds it the files bit-perfect will be 100% MQA compatible, and you'll get a full decode. Roon fits this specification, as has been confirmed by Danny.

A lot of messages to read if you've been off the last few months, true!

Ex-moderator
Sitting room: dCS Network Bridge, 818v3, HD621, 8kSE
Library: dCS Rossini Apex DAC/Clock, Clearaudio Performance Wood, Audio Research PH2, Mjölnir KGST, Mjölnir PureBipolar
SWMBO Room: 210, D33
Kitchen: RPi/RoonBridge, Genelec 6010 actives
Desk: Merging Anubis
Server: Roon/ROCK/NUC
Headphones: Stax SR-X9000, Stax SR-007, Stax SR-404LE, Audeze LCD-X...

Oldest audio file: 1889 Edison cylinder