Release Notes for HALCON Steady

Hotfix for HALCON Steady

This document provides the release notes for MVTec HALCON Steady, as released in January 2021, which is a Hotfix for HALCON Steady. For general information like licensing or supported operating systems, see the release notes of HALCON Steady.

Detailed Description of Changes in HALCON Steady (Hotfix)

The changes in HALCON Steady are described with respect to HALCON 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 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.

Follow this link to read about the changes of previous HALCON versions.