Lightburn 1.6.03 [upd] Jun 2026

Launch your current version of LightBurn. Go to File → Export Prefs and save your setup file to a secure directory.

Question about new update version - LightBurn Software Forum LightBurn 1.6.03

Ensure you are downloading the 1.6.03 patch from the official LightBurn website to ensure file integrity. Launch your current version of LightBurn

To protect users from running jobs with unintended laser configurations, if upgrading from version 1.6.00 or earlier. If you choose to manually re-enable it, the intended universal default system will apply cleanly. SHX Single-Line Font Fixes To protect users from running jobs with unintended

Master Guide to LightBurn 1.6.03: Stabilizing Your Laser Engraving Workflow

As with any software, user experiences with 1.6.03 have varied. Here’s a snapshot of the feedback from the community:

You must now hold the Ctrl (Windows) or Cmd (Mac) key to enable draggable handles for corner radiuses and polygon sides, preventing accidental changes during selection.