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Original Prusa MMU3
Changelog

Original Prusa MMU3 Changelog

Changelog is also available in following languages

Version 6.8.1. (3.0.4.) CORE One

03.09.2026

Added compatibility with Gen 2

Version 6.5.7 (3.0.4) MK3.5S, MK3.5

18.06.2026

Summary

New features and improvements
- Improved filament change between different materials
Fixes
- Support for older xBuddy versions
- Fixed input shaper calibration for CoreXY printers
- Fixed not loading custom Connect certificates
- Fixed a crash when printing more than 1024 objects

Version 6.5.7 (3.0.4) MK4S, MK4, MK3.9S, MK3.9

18.06.2026

Summary

New features and improvements
- Improved filament change between different materials
Fixes
- Support for older xBuddy versions
- Fixed input shaper calibration for CoreXY printers
- Fixed not loading custom Connect certificates
- Fixed a crash when printing more than 1024 objects

Version 6.5.7 (3.0.4) CORE One

18.06.2026

Summary

New features and improvements
- Improved filament change between different materials
Fixes
- Support for older xBuddy versions
- Fixed input shaper calibration for CoreXY printers
- Fixed not loading custom Connect certificates
- Fixed a crash when printing more than 1024 objects

Version 6.5.7 (3.0.4) CORE One L

18.06.2026

Summary

New features and improvements
- Improved filament change between different materials
Fixes
- Support for older xBuddy versions
- Fixed input shaper calibration for CoreXY printers
- Fixed not loading custom Connect certificates
- Fixed a crash when printing more than 1024 objects

Contents

Version 6.8.1. (3.0.4.) CORE One
Version 6.5.7 (3.0.4) MK3.5S, MK3.5
Version 6.5.7 (3.0.4) MK4S, MK4, MK3.9S, MK3.9
Version 6.5.7 (3.0.4) CORE One
Version 6.5.7 (3.0.4) CORE One L