changelog

[makedoc]

CHANGES/v2.2.txt

@@ -177,6 +177,8 @@ For users:
 - Updated gromacs patch for 5.1.x to 5.1.4
 - Fix a performance regression in the calculate loop where derivatives and forces were set to zero even if an action
   was not active, this is relevant for postprocessing and for the on-the-fly analysis
+- Torsion calculation has been made slightly faster and improved so as to provide correct
+  derivatives even for special angles (e.g. +pi/2 and -pi/2).
 
 For developers:
 - Macports portile is now tested on travis at every plumed push.