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

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

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

Summary

• New features and improvements
  • Massively speed up MMU filament changes [MMU]
  • Updated default input shaper profiles [C1+, C1L]
  • Updated translations (beta didn’t have new texts translated)
• Fixes
  • M1704 MMU load test gcode now considers toolmapping [MMU]
  • Fixed MMU sending spurious attention reports to Prusa Connect during normal toolchanges [MMU]

For a complete overview of features introduced in firmware 6.5.3, users can refer to the 6.5.3-beta published earlier.

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

Fixes

• Fixed not loading custom Connect certificates

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

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

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

Summary

• New features and improvements
  • Massively speed up MMU filament changes [MMU]
  • Updated default input shaper profiles [C1+, C1L]
  • Updated translations (beta didn’t have new texts translated)
• Fixes
  • M1704 MMU load test gcode now considers toolmapping [MMU]
  • Fixed MMU sending spurious attention reports to Prusa Connect during normal toolchanges [MMU]

For a complete overview of features introduced in firmware 6.5.3, users can refer to the 6.5.3-beta published earlier.

Summary

• New features and improvements
  • Massively speed up MMU filament changes [MMU]
  • Updated default input shaper profiles [C1+, C1L]
  • Updated translations (beta didn’t have new texts translated)
• Fixes
  • M1704 MMU load test gcode now considers toolmapping [MMU]
  • Fixed MMU sending spurious attention reports to Prusa Connect during normal toolchanges [MMU]

For a complete overview of features introduced in firmware 6.5.3, users can refer to the 6.5.3-beta published earlier.

Summary

• New features and improvements
  • Massively speed up MMU filament changes [MMU]
  • Updated default input shaper profiles [C1+, C1L]
  • Updated translations (beta didn’t have new texts translated)
• Fixes
  • M1704 MMU load test gcode now considers toolmapping [MMU]
  • Fixed MMU sending spurious attention reports to Prusa Connect during normal toolchanges [MMU]

For a complete overview of features introduced in firmware 6.5.3, users can refer to the 6.5.3-beta published earlier.

Summary

• New features and improvements
  • Massively speed up MMU filament changes [MMU]
  • Updated default input shaper profiles [C1+, C1L]
  • Updated translations (beta didn’t have new texts translated)
• Fixes
  • M1704 MMU load test gcode now considers toolmapping [MMU]
  • Fixed MMU sending spurious attention reports to Prusa Connect during normal toolchanges [MMU]

This is the release candidate for the upcoming firmware 6.5.3 for the Prusa CORE One L, CORE One+, CORE One, MK4S, MK4, MK3.9S and MK3.9.

For a complete overview of features introduced in firmware 6.5.3, users can refer to the 6.5.3-beta published earlier.

• New features
  • Automatic chamber vent opening/closing (C1/+)
  • Belt tuning wizard (C1/+)
  • Faster and more responsive Prusa Connect experience
  • Nozzle cleaning failed wizard
  • Auto-retract (MK4 family, XL)
  • Auto-retract improvements (C1/+)
  • Auto-retract disable option (C1/+)
  • Selective factory reset
  • Chamber support for backwards G-Code compatibility (C1/+)
• Changes and improvements
  • Improved print status messages
  • Lazier homing, more cautious calibration
  • Autoload improvements
  • Unified XL & CORE One chamber filtration
  • Option to continue after nozzle cleaning failure
  • Print sheet detection (MK4 family)
  • Respect maximum printed Z position
  • Gearbox alignment calibration (XL)
  • Filament change from Tune menu in any tool (XL)
  • Support cancelling more objects
  • Wi-Fi signal strength indicator
  • BSOD knob press behavior
  • Reworked filament sensor evaluation
  • Ukrainian language support for all printers
• Fixes
  • All the fixes from the 6.3.X releases have been expanded to other printers.
  • Various fixes and stability improvements

• New features
  • Automatic chamber vent opening/closing (C1/+)
  • Belt tuning wizard (C1/+)
  • Faster and more responsive Prusa Connect experience
  • Nozzle cleaning failed wizard
  • Auto-retract (MK4 family, XL)
  • Auto-retract improvements (C1/+)
  • Auto-retract disable option (C1/+)
  • Selective factory reset
  • Chamber support for backwards G-Code compatibility (C1/+)
• Changes and improvements
  • Improved print status messages
  • Lazier homing, more cautious calibration
  • Autoload improvements
  • Unified XL & CORE One chamber filtration
  • Option to continue after nozzle cleaning failure
  • Print sheet detection (MK4 family)
  • Respect maximum printed Z position
  • Gearbox alignment calibration (XL)
  • Filament change from Tune menu in any tool (XL)
  • Support cancelling more objects
  • Wi-Fi signal strength indicator
  • BSOD knob press behavior
  • Reworked filament sensor evaluation
  • Ukrainian language support for all printers
• Fixes
  • All the fixes from the 6.3.X releases have been expanded to other printers.
  • Various fixes and stability improvements

Summary

• Display refresh rate fallback to improve stability
• Fixes for rare BSOD crashes during filament handling

Summary

• Display refresh rate fallback to improve stability
• Fixes for rare BSOD crashes during filament handling

• Smarter heat absorption logic
• Retuned heatbed PID for thermal stability
• Automatic display refresh rate fallback
• Additional updates, improvements, and fixes

Fixes

• Fixed not loading custom Connect certificates

New features:

• Firmware image vendor-signed to prevent a malicious 3rd-party firmware attack vector 

Fixed Bugs:

• Reduced USB filesystem privileges to eliminate a potential attack vector
• Reduced privileges of Klipper components to eliminate potential attack vectors
• Removed unused source code stubs to eliminate potential attack vectors
• Printer REST API sanitized against potential malicious code injection
• Service SSH access removed
• Printer name validation by RFC 1123 fixed

• Support for Prusa Connect
• Custom print profiles
• Updated PrusaLink Web
• Exposure time limits
• Reworked handling of USB flash drives
• API key support dropped
• Other improvements
• Bug fixes
• Known issues

• Extend all timers to 255 minutes
• IPA Filtering (new feature)
• Wash cycles (new feature)
• New heating algorithm
• Automatic fans control
• Factory reset option
• Improved self-test
• Bugfixes

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

Summary

• New features and improvements
  • Massively speed up MMU filament changes [MMU]
  • Updated default input shaper profiles [C1+, C1L]
  • Updated translations (beta didn’t have new texts translated)
• Fixes
  • M1704 MMU load test gcode now considers toolmapping [MMU]
  • Fixed MMU sending spurious attention reports to Prusa Connect during normal toolchanges [MMU]

For a complete overview of features introduced in firmware 6.5.3, users can refer to the 6.5.3-beta published earlier.

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

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

Summary

• New features and improvements
  • Massively speed up MMU filament changes [MMU]
  • Updated default input shaper profiles [C1+, C1L]
  • Updated translations (beta didn’t have new texts translated)
• Fixes
  • M1704 MMU load test gcode now considers toolmapping [MMU]
  • Fixed MMU sending spurious attention reports to Prusa Connect during normal toolchanges [MMU]

For a complete overview of features introduced in firmware 6.5.3, users can refer to the 6.5.3-beta published earlier.

• Add filament presence check at start of print
• Region Mesh Bed Levelling fixes
• Show filament color/name during M600
• Fix safety timer not handled correctly
• Delay Z-Axis on Autoload
• Replace hard coded crash z lift value with Pause Z lift value.
• Send host actions on filament runout
• Lower MIN_Z_FOR_UNLOAD from 50mm to 20mm
• Add "load filament" if autoload is disabled
• Abort nozzle change if filament is loaded
• PowerPanic related changes
• Reduce ambient shutdown to 80 °C
• Added utils/build.py to be able to compile the firmware
• MMU related changes
• Minor fixes
• Community related changes

• Add filament presence check at start of print
• Region Mesh Bed Levelling fixes
• Show filament color/name during M600
• Fix safety timer not handled correctly
• Delay Z-Axis on Autoload
• Replace hard coded crash z lift value with Pause Z lift value.
• Send host actions on filament runout
• Lower MIN_Z_FOR_UNLOAD from 50mm to 20mm
• Add "load filament" if autoload is disabled
• Abort nozzle change if filament is loaded
• PowerPanic related changes
• Reduce ambient shutdown to 80 °C
• Added utils/build.py to be able to compile the firmware
• MMU related changes
• Minor fixes
• Community related changes

Fixes

• Fixed not loading custom Connect certificates

• Add filament presence check at start of print
• Region Mesh Bed Levelling fixes
• Show filament color/name during M600
• Fix safety timer not handled correctly
• Delay Z-Axis on Autoload
• Replace hard coded crash z lift value with Pause Z lift value.
• Send host actions on filament runout
• Lower MIN_Z_FOR_UNLOAD from 50mm to 20mm
• Add "load filament" if autoload is disabled
• Abort nozzle change if filament is loaded
• PowerPanic related changes
• Reduce ambient shutdown to 80 °C
• Added utils/build.py to be able to compile the firmware
• MMU related changes
• Minor fixes
• Community related changes

• Support for Prusa Connect
• Custom print profiles
• Updated PrusaLink Web
• Exposure time limits
• Reworked handling of USB flash drives
• API key support dropped
• Other improvements
• Bug fixes
• Known issues

• Add filament presence check at start of print
• Region Mesh Bed Levelling fixes
• Show filament color/name during M600
• Fix safety timer not handled correctly
• Delay Z-Axis on Autoload
• Replace hard coded crash z lift value with Pause Z lift value.
• Send host actions on filament runout
• Lower MIN_Z_FOR_UNLOAD from 50mm to 20mm
• Add "load filament" if autoload is disabled
• Abort nozzle change if filament is loaded
• PowerPanic related changes
• Reduce ambient shutdown to 80 °C
• Added utils/build.py to be able to compile the firmware
• MMU related changes
• Minor fixes
• Community related changes

• Extend all timers to 255 minutes
• IPA Filtering (new feature)
• Wash cycles (new feature)
• New heating algorithm
• Automatic fans control
• Factory reset option
• Improved self-test
• Bugfixes

• Add filament presence check at start of print
• Region Mesh Bed Levelling fixes
• Show filament color/name during M600
• Fix safety timer not handled correctly
• Delay Z-Axis on Autoload
• Replace hard coded crash z lift value with Pause Z lift value.
• Send host actions on filament runout
• Lower MIN_Z_FOR_UNLOAD from 50mm to 20mm
• Add "load filament" if autoload is disabled
• Abort nozzle change if filament is loaded
• PowerPanic related changes
• Reduce ambient shutdown to 80 °C
• Added utils/build.py to be able to compile the firmware
• MMU related changes
• Minor fixes
• Community related changes

• Add filament presence check at start of print
• Region Mesh Bed Levelling fixes
• Show filament color/name during M600
• Fix safety timer not handled correctly
• Delay Z-Axis on Autoload
• Replace hard coded crash z lift value with Pause Z lift value.
• Send host actions on filament runout
• Lower MIN_Z_FOR_UNLOAD from 50mm to 20mm
• Add "load filament" if autoload is disabled
• Abort nozzle change if filament is loaded
• PowerPanic related changes
• Reduce ambient shutdown to 80 °C
• Added utils/build.py to be able to compile the firmware
• MMU related changes
• Minor fixes
• Community related changes

• Preheat error improved
• Improved temperature regulation
• Remaining time estimation
• Adjustable beeper notifications
• Incomplete file check updated
• G-code fixes (M27, M110, M115)

• Preheat error improved
• Improved temperature regulation
• Remaining time estimation
• Adjustable beeper notifications
• Incomplete file check updated
• G-code fixes (M27, M110, M115)

• Improved XYZ calibration
• XYZ calibration results are now available in Support menu
• Selftest fixed
• Improved unload filament
• Multi Material
• When stopping a print, user is asked what filaments to unload
• “T?” Gcode added, which selects extruder to use prior to the print
• Added support for MK1