Hotfix for HALCON 20.11 Steady & Progress

MVTec has released hotfix versions of HALCON 20.11. Progress and Steady. The following changes are described with respect to HALCON Progress and Steady.


On some computers, HALCON could not start after 2021-01-01 and showed the error 2021 (“System clock has been set back”). This problem has been fixed.


  • HDevelop's variable inspection windows did not use the selected 'Values and Parameters' font when opened. This problem has been fixed.
  • If a procedure interface dialog had been added to the docking environment during the previous session, and then this dialog was used in the new session, HDevelop could crash during a restart. This problem has been fixed.
  • On some platforms, the program editor did not have the input focus on startup. This problem has been fixed.

Code Export

If an output variable for an operator call was also used in an expression passed as input parameter (e.g., concatenation), the export to C# and VB.net did not work. This problem has been fixed.


The Python examples for HALCON Steady incorrectly required the Python language interface for HALCON Progress. This problem has been fixed.

Release Notes HALCON Steady   Release Notes HALCON Progress