diff --git a/versions.md b/versions.md
index 2a11cf2c..22bb9d7b 100644
--- a/versions.md
+++ b/versions.md
@@ -1,9 +1,10 @@
 # CTAG TBD Version Log
 
 ## V0.9.20
-- WTOsc extended with pitch quantizer, smoothed wavetable selection by CV
+- WTOsc extended with pitch quantizer, smoothed wavetable selection by CV --> significant improvement
 - TBD03 slide and slide level parameter added
 - Current firmware version shown in web ui configuration menu
+- Calibration backup / restore dialog page
 
 ## V0.9.19a
 - New plugin Freakwaves by M. Brüssel --> complex wavetable synth