README.md: Compatibility warning for new Liquidsoap 2.3.x.

README.md

@@ -9,6 +9,9 @@ On-the-fly JSON song cue-in, cue-out, overlay, replaygain calculation for Liquid
 > [!NOTE]
 > **_During mid-July until mid-August 2024, I will generally not be available. I might check in from time to time, but cannot guarantee any answers._**
 
+> [!WARNING]
+> **Autocue was made for Liquidsoap 2.2.5 and is not yet fully compatible with the new Liquidsoap 2.3.x rolling release, since some parameters have changed in Liquidsoap. I’ll start working on a new version when back.**
+
 **Note:** This documentation describes the standalone `cue_file` and `autocue.cue_file`, my integration into Liquidsoap’s `autocue:` protocol.
 
 **Note:** The previous `integrate-with-liquidsoap` branch is now gone. I updated the `master` branch and you can get the latest versions from that.