diff --git a/FCCee/IDEA/compact/README.md b/FCCee/IDEA/compact/README.md
index d6c9ee96..b4ce0251 100644
--- a/FCCee/IDEA/compact/README.md
+++ b/FCCee/IDEA/compact/README.md
@@ -32,3 +32,5 @@ IDEA_o2_v01
 Second option of IDEA detector. The inner part up to the drift-chamber is identical to IDEA_o1, the dual-readout calorimeter uses the INFN capillary-tubes technology and replaces the monolithic calorimeter description. Between the drift-chamber and the dual-readout calorimeter a dual-readout crystal electromagnetic calorimeter will be placed, consequentially the preshower is removed. The muon system is identical to IDEA_o1.
 
 October 2024: first implementation using the dual-readout capillary-tubes endcap geometry.
+
+December 2024: Added the dual-readout capillary-tubes barrel calorimeter.