diff --git a/AIRPLAY2.md b/AIRPLAY2.md
index d741f6ad..86c5a57b 100644
--- a/AIRPLAY2.md
+++ b/AIRPLAY2.md
@@ -1,5 +1,5 @@
 # AirPlay 2
-Shairport Sync offers AirPlay 2 support for audio sources on iOS devices, Macs, HomePod minis and Apple TVs.
+Shairport Sync offers AirPlay 2 support for audio sources on iOS devices, Macs from macOS 10.15 (Catalina) onwards, HomePod minis and Apple TVs.
 
 ## What Works
 - AirPlay 2 audio for iOS, HomePod mini, AppleTV and Mac players.