Last updated: May 2026 – confirmed working with Anycubic Chiron Trigorilla 0.0.4 and stock capacitive probe.

Official firmware for the Anycubic Chiron is based on Marlin—the open-source 3D printer firmware. Version 1.3.5 (often stylized as v1.3.5) was one of the last official stable releases before Anycubic shifted focus to newer machines like the Kobra series.

Anycubic no longer hosts v1.3.5 on its official site. The most reliable source is community repositories (GitHub, Thingiverse, etc.).