Update: In some case it was not somme possible to zoom a 1D histogram

README/ReleaseNotes/v612/index.md

@@ -59,8 +59,8 @@ or will be set to the address of the histogram read from the file.
 
 ## TTree Libraries
 
-- Resolved O(N^2) scaling problem in ```TTree::Draw()``` observed when a branch that contains a 
-large TClonesArray where each element contains another small vector container. 
+- Resolved O(N^2) scaling problem in ```TTree::Draw()``` observed when a branch that contains a
+large TClonesArray where each element contains another small vector container.
 
 ## Histogram Libraries
 
@@ -80,6 +80,9 @@ large TClonesArray where each element contains another small vector container.
     -  LogZ for violins
     -  scaling of candles and violins with respect to each other
     -  static functions for WhiskerRange and BoxRange
+  - In some case it was not somme possible to zoom a 1D histogram using the mouse
+    on the X axis. This was described
+    [here](https://root-forum.cern.ch/t/axis-blocked-when-overlaying-two-histograms/25326)
 
 ## 3D Graphics Libraries