As of 2024, CODEX has disbanded, and BATTLETECH V1.8.1 is no longer receiving official updates. Consequently, this release is often considered the "final archive" version of the game before Harebrained Schemes moved on to other projects.
The update size was approximately 300–500 MB, significantly smaller than a full game re-download. BATTLETECH Heavy Metal Update V1 8 1-CODEX
In V1.8.0, many of the new “Mech Quirks” (passive bonuses for specific chassis) were not functioning correctly. The COIL beam, for example, was dealing inconsistent damage based on movement. Patch 1.8.1 corrected the math, ensuring that the COIL-Large laser actually vaporizes enemy light ‘Mechs as intended. As of 2024, CODEX has disbanded, and BATTLETECH V1