Lightburn 1.6.03 [top] Jun 2026

LightBurn uses GPU acceleration for canvas pan/zoom and layer previews. Version 1.6.03 fixes a memory leak that caused the application to consume >2GB of RAM on long editing sessions. Heavy users report stable usage around 450MB–700MB.

However, 1.6.03 represents a stable, battle-tested foundation. Most commercial laser workshops will stay on 1.6.03 until the first beta of 1.7 emerges. LightBurn 1.6.03

If you are currently running an older version (like 1.5 or 1.4), updating to 1.6.03 is highly recommended for the following reasons: LightBurn uses GPU acceleration for canvas pan/zoom and