ファームウェアとダウンロード

CORE One INDX

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features

HT hotend support with automatic hotend detection
PPS and PPA filament presets for the HT hotend
PVA and BVOH filament presets
Filament color support
Tool mapping presets and Smart mapping
Automatic Z-axis alignment on uneven bed
Runout Reaction setting for instant or delayed runout handling (#5423)

Changes and improvements

New versioning policy
Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
Reorganized Tune menu [6.9.0]
Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
Stuck filament dialog now offers Ignore and Disable options [6.9.0]
Improved Nozzle Wiper cleaning [6.10.1]
Parking now lifts the Z axis faster [6.10.2]
Heater selftest now lowers the bed further to leave room for hands [6.9.1]
Chamber vents now close automatically at the end of a print [6.9.0]
Filament sensor selftest now detects a disconnected sensor [6.9.0]
G-code lines sent over USB/serial that are too long now show a warning
PrusaLink file downloads now keep long file names
Prusa Connect now shows changed chamber, fan and light values within seconds
MMU filament menu now shows the loaded filament and its color [MMU]

Fixes

Improved security and robustness
Fixed unreliable homing [C1/+] [6.9.1]
Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
Fixed chamber temperature serial reporting format
Fixed an extra blob of filament when resuming after a power failure [6.9.0]
Fixed settings being lost when power was cut while they were being saved [6.10.1]
Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
Fixed the Not enough tools G-code check blocking prints with no way to bypass it
Fixed a crash when the door was opened during homing
Fixed wrong remaining time after resuming from a power failure [6.9.0]
Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
Fixed a crash on the print preview screen
Fixed text overflowing on the factory reset screen
Fixed a crash when changing Front PTFE Length [MMU]
Fixed tool mapping being ignored when starting a print from Prusa Connect
Display glitch recovery now also works on error and boot screens
Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.02

2026-10-08T00:00:00+00:00

変更 1.02

Minor fixes

CORE One L+

Firmware 7.0.0

2026-10-05T00:00:00+00:00

変更 7.0.0

New features
- HT hotend support with automatic hotend detection
- PPS and PPA filament presets for the HT hotend
- PVA and BVOH filament presets
- Filament color support
- Tool mapping presets and Smart mapping
- Automatic Z-axis alignment on uneven bed
- Runout Reaction setting for instant or delayed runout handling (#5423)
Changes and improvements
- New versioning policy
- Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
- Reorganized Tune menu [6.9.0]
- Tool mapping is now preserved when reprinting a job [6.9.0]
- New Customize button for tweaking a loaded filament
- Stuck filament dialog now offers Ignore and Disable options [6.9.0]
- Improved Nozzle Wiper cleaning [6.10.1]
- Parking now lifts the Z axis faster [6.10.2]
- Heater selftest now lowers the bed further to leave room for hands [6.9.1]
- Chamber vents now close automatically at the end of a print [6.9.0]
- Filament sensor selftest now detects a disconnected sensor [6.9.0]
- G-code lines sent over USB/serial that are too long now show a warning
- PrusaLink file downloads now keep long file names
- Prusa Connect now shows changed chamber, fan and light values within seconds
- MMU filament menu now shows the loaded filament and its color [MMU]
Fixes
- Fixed unreliable homing [C1/+] [6.9.1]
- Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
- Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
- Fixed chamber temperature serial reporting format
- Fixed an extra blob of filament when resuming after a power failure [6.9.0]
- Fixed settings being lost when power was cut while they were being saved [6.10.1]
- Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
- Fixed the Not enough tools G-code check blocking prints with no way to bypass it
- Fixed a crash when the door was opened during homing
- Fixed wrong remaining time after resuming from a power failure [6.9.0]
- Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
- Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
- Fixed a crash on the print preview screen
- Fixed text overflowing on the factory reset screen
- Fixed a crash when changing Front PTFE Length [MMU]
- Fixed tool mapping being ignored when starting a print from Prusa Connect
- Display glitch recovery now also works on error and boot screens
- Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.01

2026-07-07T00:00:00+00:00

変更 1.01

Added instructions for Critical Infrastructure

CORE One+

Firmware 7.0.0

2026-10-05T00:00:00+00:00

変更 7.0.0

New features
- HT hotend support with automatic hotend detection
- PPS and PPA filament presets for the HT hotend
- PVA and BVOH filament presets
- Filament color support
- Tool mapping presets and Smart mapping
- Automatic Z-axis alignment on uneven bed
- Runout Reaction setting for instant or delayed runout handling (#5423)
- Changes and improvements

New versioning policy
- Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
- Reorganized Tune menu [6.9.0]
- Tool mapping is now preserved when reprinting a job [6.9.0]
- New Customize button for tweaking a loaded filament
- Stuck filament dialog now offers Ignore and Disable options [6.9.0]
- Improved Nozzle Wiper cleaning [6.10.1]
- Parking now lifts the Z axis faster [6.10.2]
- Heater selftest now lowers the bed further to leave room for hands [6.9.1]
- Chamber vents now close automatically at the end of a print [6.9.0]
- Filament sensor selftest now detects a disconnected sensor [6.9.0]
- G-code lines sent over USB/serial that are too long now show a warning
- PrusaLink file downloads now keep long file names
- Prusa Connect now shows changed chamber, fan and light values within seconds
- MMU filament menu now shows the loaded filament and its color [MMU]

Fixes
- Fixed unreliable homing [C1/+] [6.9.1]
- Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
- Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
- Fixed chamber temperature serial reporting format
- Fixed an extra blob of filament when resuming after a power failure [6.9.0]
- Fixed settings being lost when power was cut while they were being saved [6.10.1]
- Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
- Fixed the Not enough tools G-code check blocking prints with no way to bypass it
- Fixed a crash when the door was opened during homing
- Fixed wrong remaining time after resuming from a power failure [6.9.0]
- Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
- Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
- Fixed a crash on the print preview screen
- Fixed text overflowing on the factory reset screen
- Fixed a crash when changing Front PTFE Length [MMU]
- Fixed tool mapping being ignored when starting a print from Prusa Connect
- Display glitch recovery now also works on error and boot screens
- Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.02

2026-06-05T00:00:00+00:00

変更 1.02

Updated content for CORE One+

XL+

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features
- HT hotend support with automatic hotend detection
- PPS and PPA filament presets for the HT hotend
- PVA and BVOH filament presets
- Filament color support
- Tool mapping presets and Smart mapping
- Automatic Z-axis alignment on uneven bed
- Runout Reaction setting for instant or delayed runout handling (#5423)
- Changes and improvements
- New versioning policy
- Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
- Reorganized Tune menu [6.9.0]
- Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
- Stuck filament dialog now offers Ignore and Disable options [6.9.0]
- Improved Nozzle Wiper cleaning [6.10.1]
- Parking now lifts the Z axis faster [6.10.2]
- Heater selftest now lowers the bed further to leave room for hands [6.9.1]
- Chamber vents now close automatically at the end of a print [6.9.0]
- Filament sensor selftest now detects a disconnected sensor [6.9.0]
- G-code lines sent over USB/serial that are too long now show a warning
- PrusaLink file downloads now keep long file names
- Prusa Connect now shows changed chamber, fan and light values within seconds
- MMU filament menu now shows the loaded filament and its color [MMU]
Fixes
- Improved security and robustness
- Fixed unreliable homing [C1/+] [6.9.1]
- Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
- Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
- Fixed chamber temperature serial reporting format
- Fixed an extra blob of filament when resuming after a power failure [6.9.0]
- Fixed settings being lost when power was cut while they were being saved [6.10.1]
- Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
- Fixed the Not enough tools G-code check blocking prints with no way to bypass it
- Fixed a crash when the door was opened during homing
- Fixed wrong remaining time after resuming from a power failure [6.9.0]
- Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
- Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
- Fixed a crash on the print preview screen
- Fixed text overflowing on the factory reset screen
- Fixed a crash when changing Front PTFE Length [MMU]
- Fixed tool mapping being ignored when starting a print from Prusa Connect
- Display glitch recovery now also works on error and boot screens
- Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.01

2026-09-30T00:00:00+00:00

変更 1.01

Minor updates

Signature Oak

Firmware 6.8.1

2026-08-14T00:00:00+00:00

変更 6.8.1

New features
- New editions: CORE One+ (Gen 2) and CORE One L+
- Nozzle Wiper support, replacing the previous print-start nozzle cleaning routine
- GT1.5 belts support
- Expansion Joints Gen 2 support, with a much shorter Absorbing heat phase [C1+ (Gen 2)]
- Immediate stop on filament runout
- Guided calibration order - calibrations and tests declare their prerequisites
Changes and improvements
- Reorganized menus - some settings have been moved to different submenus
- Filament compatibility checks in more places
- Custom filament names may contain lowercase letters
Fixes
- Fixed not restoring original temperature on filament runout/mid-print change
- More reliable communication with the xBuddy Extension
- The last file in a folder was not visible, and related file list fixes
- The printer no longer beeps on boot in Silent mode
- An upward swipe on the touchscreen is no longer registered as a tap
- And a lot more

Handbook 1.00

2026-03-06T00:00:00+00:00

変更 1.00

Initial release

MK4S

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features

HT hotend support with automatic hotend detection
PPS and PPA filament presets for the HT hotend
PVA and BVOH filament presets
Filament color support
Tool mapping presets and Smart mapping
Automatic Z-axis alignment on uneven bed
Runout Reaction setting for instant or delayed runout handling (#5423)

Changes and improvements

New versioning policy
Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
Reorganized Tune menu [6.9.0]
Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
Stuck filament dialog now offers Ignore and Disable options [6.9.0]
Improved Nozzle Wiper cleaning [6.10.1]
Parking now lifts the Z axis faster [6.10.2]
Heater selftest now lowers the bed further to leave room for hands [6.9.1]
Chamber vents now close automatically at the end of a print [6.9.0]
Filament sensor selftest now detects a disconnected sensor [6.9.0]
G-code lines sent over USB/serial that are too long now show a warning
PrusaLink file downloads now keep long file names
Prusa Connect now shows changed chamber, fan and light values within seconds
MMU filament menu now shows the loaded filament and its color [MMU]

Fixes

Improved security and robustness
Fixed unreliable homing [C1/+] [6.9.1]
Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
Fixed chamber temperature serial reporting format
Fixed an extra blob of filament when resuming after a power failure [6.9.0]
Fixed settings being lost when power was cut while they were being saved [6.10.1]
Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
Fixed the Not enough tools G-code check blocking prints with no way to bypass it
Fixed a crash when the door was opened during homing
Fixed wrong remaining time after resuming from a power failure [6.9.0]
Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
Fixed a crash on the print preview screen
Fixed text overflowing on the factory reset screen
Fixed a crash when changing Front PTFE Length [MMU]
Fixed tool mapping being ignored when starting a print from Prusa Connect
Display glitch recovery now also works on error and boot screens
Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.01

2024-10-23T00:00:00+00:00

変更 1.01

Correction of product information

Minor content updates

MMU3

Firmware 6.8.1. (3.0.4.) CORE One

2026-09-03T00:00:00+00:00

変更 6.8.1. (3.0.4.) CORE One

Added compatibility with Gen 2

Handbook 1.03

2025-06-11T00:00:00+00:00

変更 1.03

Includes instructions for Prusa CORE One
Added instructions for initial setup

MINI+

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features
- HT hotend support with automatic hotend detection
- PPS and PPA filament presets for the HT hotend
- PVA and BVOH filament presets
- Filament color support
- Tool mapping presets and Smart mapping
- Automatic Z-axis alignment on uneven bed
- Runout Reaction setting for instant or delayed runout handling (#5423)
Changes and improvements
- New versioning policy
- Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
- Reorganized Tune menu [6.9.0]
- Tool mapping is now preserved when reprinting a job [6.9.0]
- New Customize button for tweaking a loaded filament
- Stuck filament dialog now offers Ignore and Disable options [6.9.0]
- Improved Nozzle Wiper cleaning [6.10.1]
- Parking now lifts the Z axis faster [6.10.2]
- Heater selftest now lowers the bed further to leave room for hands [6.9.1]
- Chamber vents now close automatically at the end of a print [6.9.0]
- Filament sensor selftest now detects a disconnected sensor [6.9.0]
- G-code lines sent over USB/serial that are too long now show a warning
- PrusaLink file downloads now keep long file names
- Prusa Connect now shows changed chamber, fan and light values within seconds
- MMU filament menu now shows the loaded filament and its color [MMU]
Fixes
- Improved security and robustness
- Fixed unreliable homing [C1/+] [6.9.1]
- Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
- Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
- Fixed chamber temperature serial reporting format
- Fixed an extra blob of filament when resuming after a power failure [6.9.0]
- Fixed settings being lost when power was cut while they were being saved [6.10.1]
- Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
- Fixed the Not enough tools G-code check blocking prints with no way to bypass it
- Fixed a crash when the door was opened during homing
- Fixed wrong remaining time after resuming from a power failure [6.9.0]
- Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
- Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
- Fixed a crash on the print preview screen
- Fixed text overflowing on the factory reset screen
- Fixed a crash when changing Front PTFE Length [MMU]
- Fixed tool mapping being ignored when starting a print from Prusa Connect
- Display glitch recovery now also works on error and boot screens
- Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.11

2023-11-10T00:00:00+00:00

変更 1.11

Wi-Fi auto-reconnect fixed
Improved Wi-Fi (ESP) flashing
RTC fixed
Additional hotend protection
UI fixes
New error code URL
Improved bootstrap
Known issues

HT90

Firmware 1.3.56

2026-06-04T00:00:00+00:00

変更 1.3.56

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

Documents:

Security content of Prusa Pro HT90 firmware 1.3.56, Advisory ID: PSA-2026-001

Handbook 1.01

2025-05-05T00:00:00+00:00

変更 1.01

Updated specification of OHS (Occupational Health and Safety)
Updated description of package contents
Updated maintenance section

SL1S SPEED

Firmware 1.8.0

2025-03-11T00:00:00+00:00

変更 1.8.0

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

Handbook 1.08

2024-04-03T00:00:00+00:00

変更 1.08

Updating information on package contents

Enclosure

Accessories

CW1S

Firmware 3.3.0

2023-05-16T00:00:00+00:00

変更 3.3.0

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

Handbook 1.02

2022-04-25T00:00:00+00:00

変更 1.02

Initial release for the CW1S

XL

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features
- HT hotend support with automatic hotend detection
- PPS and PPA filament presets for the HT hotend
- PVA and BVOH filament presets
- Filament color support
- Tool mapping presets and Smart mapping
- Automatic Z-axis alignment on uneven bed
- Runout Reaction setting for instant or delayed runout handling (#5423)
- Changes and improvements
- New versioning policy
- Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
- Reorganized Tune menu [6.9.0]
- Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
- Stuck filament dialog now offers Ignore and Disable options [6.9.0]
- Improved Nozzle Wiper cleaning [6.10.1]
- Parking now lifts the Z axis faster [6.10.2]
- Heater selftest now lowers the bed further to leave room for hands [6.9.1]
- Chamber vents now close automatically at the end of a print [6.9.0]
- Filament sensor selftest now detects a disconnected sensor [6.9.0]
- G-code lines sent over USB/serial that are too long now show a warning
- PrusaLink file downloads now keep long file names
- Prusa Connect now shows changed chamber, fan and light values within seconds
- MMU filament menu now shows the loaded filament and its color [MMU]
Fixes
- Improved security and robustness
- Fixed unreliable homing [C1/+] [6.9.1]
- Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
- Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
- Fixed chamber temperature serial reporting format
- Fixed an extra blob of filament when resuming after a power failure [6.9.0]
- Fixed settings being lost when power was cut while they were being saved [6.10.1]
- Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
- Fixed the Not enough tools G-code check blocking prints with no way to bypass it
- Fixed a crash when the door was opened during homing
- Fixed wrong remaining time after resuming from a power failure [6.9.0]
- Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
- Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
- Fixed a crash on the print preview screen
- Fixed text overflowing on the factory reset screen
- Fixed a crash when changing Front PTFE Length [MMU]
- Fixed tool mapping being ignored when starting a print from Prusa Connect
- Display glitch recovery now also works on error and boot screens
- Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.06

2026-06-05T00:00:00+00:00

変更 1.06

Added information for Critical Infrastructure

CORE One L

Firmware 7.0.0

2026-10-05T00:00:00+00:00

変更 7.0.0

New features
- HT hotend support with automatic hotend detection
- PPS and PPA filament presets for the HT hotend
- PVA and BVOH filament presets
- Filament color support
- Tool mapping presets and Smart mapping
- Automatic Z-axis alignment on uneven bed
- Runout Reaction setting for instant or delayed runout handling (#5423)
Changes and improvements
- New versioning policy
- Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
- Reorganized Tune menu [6.9.0]
- Tool mapping is now preserved when reprinting a job [6.9.0]
- New Customize button for tweaking a loaded filament
- Stuck filament dialog now offers Ignore and Disable options [6.9.0]
- Improved Nozzle Wiper cleaning [6.10.1]
- Parking now lifts the Z axis faster [6.10.2]
- Heater selftest now lowers the bed further to leave room for hands [6.9.1]
- Chamber vents now close automatically at the end of a print [6.9.0]
- Filament sensor selftest now detects a disconnected sensor [6.9.0]
- G-code lines sent over USB/serial that are too long now show a warning
- PrusaLink file downloads now keep long file names
- Prusa Connect now shows changed chamber, fan and light values within seconds
- MMU filament menu now shows the loaded filament and its color [MMU]
Fixes
- Fixed unreliable homing [C1/+] [6.9.1]
- Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
- Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
- Fixed chamber temperature serial reporting format
- Fixed an extra blob of filament when resuming after a power failure [6.9.0]
- Fixed settings being lost when power was cut while they were being saved [6.10.1]
- Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
- Fixed the Not enough tools G-code check blocking prints with no way to bypass it
- Fixed a crash when the door was opened during homing
- Fixed wrong remaining time after resuming from a power failure [6.9.0]
- Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
- Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
- Fixed a crash on the print preview screen
- Fixed text overflowing on the factory reset screen
- Fixed a crash when changing Front PTFE Length [MMU]
- Fixed tool mapping being ignored when starting a print from Prusa Connect
- Display glitch recovery now also works on error and boot screens
- Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.01

2026-09-10T00:00:00+00:00

変更 1.01

Added information for Critical Infrastructure

[進行中の翻訳]

CORE One

Firmware 7.0.0

2026-10-05T00:00:00+00:00

変更 7.0.0

New features
- HT hotend support with automatic hotend detection
- PPS and PPA filament presets for the HT hotend
- PVA and BVOH filament presets
- Filament color support
- Tool mapping presets and Smart mapping
- Automatic Z-axis alignment on uneven bed
- Runout Reaction setting for instant or delayed runout handling (#5423)
- Changes and improvements

New versioning policy
- Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
- Reorganized Tune menu [6.9.0]
- Tool mapping is now preserved when reprinting a job [6.9.0]
- New Customize button for tweaking a loaded filament
- Stuck filament dialog now offers Ignore and Disable options [6.9.0]
- Improved Nozzle Wiper cleaning [6.10.1]
- Parking now lifts the Z axis faster [6.10.2]
- Heater selftest now lowers the bed further to leave room for hands [6.9.1]
- Chamber vents now close automatically at the end of a print [6.9.0]
- Filament sensor selftest now detects a disconnected sensor [6.9.0]
- G-code lines sent over USB/serial that are too long now show a warning
- PrusaLink file downloads now keep long file names
- Prusa Connect now shows changed chamber, fan and light values within seconds
- MMU filament menu now shows the loaded filament and its color [MMU]

Fixes
- Fixed unreliable homing [C1/+] [6.9.1]
- Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
- Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
- Fixed chamber temperature serial reporting format
- Fixed an extra blob of filament when resuming after a power failure [6.9.0]
- Fixed settings being lost when power was cut while they were being saved [6.10.1]
- Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
- Fixed the Not enough tools G-code check blocking prints with no way to bypass it
- Fixed a crash when the door was opened during homing
- Fixed wrong remaining time after resuming from a power failure [6.9.0]
- Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
- Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
- Fixed a crash on the print preview screen
- Fixed text overflowing on the factory reset screen
- Fixed a crash when changing Front PTFE Length [MMU]
- Fixed tool mapping being ignored when starting a print from Prusa Connect
- Display glitch recovery now also works on error and boot screens
- Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.01

2025-03-20T00:00:00+00:00

変更 1.01

Instructions for installing anti-vibration bars

MK3.9S

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features

HT hotend support with automatic hotend detection
PPS and PPA filament presets for the HT hotend
PVA and BVOH filament presets
Filament color support
Tool mapping presets and Smart mapping
Automatic Z-axis alignment on uneven bed
Runout Reaction setting for instant or delayed runout handling (#5423)

Changes and improvements

New versioning policy
Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
Reorganized Tune menu [6.9.0]
Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
Stuck filament dialog now offers Ignore and Disable options [6.9.0]
Improved Nozzle Wiper cleaning [6.10.1]
Parking now lifts the Z axis faster [6.10.2]
Heater selftest now lowers the bed further to leave room for hands [6.9.1]
Chamber vents now close automatically at the end of a print [6.9.0]
Filament sensor selftest now detects a disconnected sensor [6.9.0]
G-code lines sent over USB/serial that are too long now show a warning
PrusaLink file downloads now keep long file names
Prusa Connect now shows changed chamber, fan and light values within seconds
MMU filament menu now shows the loaded filament and its color [MMU]

Fixes

Improved security and robustness
Fixed unreliable homing [C1/+] [6.9.1]
Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
Fixed chamber temperature serial reporting format
Fixed an extra blob of filament when resuming after a power failure [6.9.0]
Fixed settings being lost when power was cut while they were being saved [6.10.1]
Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
Fixed the Not enough tools G-code check blocking prints with no way to bypass it
Fixed a crash when the door was opened during homing
Fixed wrong remaining time after resuming from a power failure [6.9.0]
Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
Fixed a crash on the print preview screen
Fixed text overflowing on the factory reset screen
Fixed a crash when changing Front PTFE Length [MMU]
Fixed tool mapping being ignored when starting a print from Prusa Connect
Display glitch recovery now also works on error and boot screens
Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.01

2024-10-23T00:00:00+00:00

変更 1.01

Correction of product information

Minor content updates

MK3.5S

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features

HT hotend support with automatic hotend detection
PPS and PPA filament presets for the HT hotend
PVA and BVOH filament presets
Filament color support
Tool mapping presets and Smart mapping
Automatic Z-axis alignment on uneven bed
Runout Reaction setting for instant or delayed runout handling (#5423)

Changes and improvements

New versioning policy
Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
Reorganized Tune menu [6.9.0]
Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
Stuck filament dialog now offers Ignore and Disable options [6.9.0]
Improved Nozzle Wiper cleaning [6.10.1]
Parking now lifts the Z axis faster [6.10.2]
Heater selftest now lowers the bed further to leave room for hands [6.9.1]
Chamber vents now close automatically at the end of a print [6.9.0]
Filament sensor selftest now detects a disconnected sensor [6.9.0]
G-code lines sent over USB/serial that are too long now show a warning
PrusaLink file downloads now keep long file names
Prusa Connect now shows changed chamber, fan and light values within seconds
MMU filament menu now shows the loaded filament and its color [MMU]

Fixes

Improved security and robustness
Fixed unreliable homing [C1/+] [6.9.1]
Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
Fixed chamber temperature serial reporting format
Fixed an extra blob of filament when resuming after a power failure [6.9.0]
Fixed settings being lost when power was cut while they were being saved [6.10.1]
Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
Fixed the Not enough tools G-code check blocking prints with no way to bypass it
Fixed a crash when the door was opened during homing
Fixed wrong remaining time after resuming from a power failure [6.9.0]
Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
Fixed a crash on the print preview screen
Fixed text overflowing on the factory reset screen
Fixed a crash when changing Front PTFE Length [MMU]
Fixed tool mapping being ignored when starting a print from Prusa Connect
Display glitch recovery now also works on error and boot screens
Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.01

2024-10-23T00:00:00+00:00

変更 1.01

Correction of product information

Minor content updates

MK4

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features

HT hotend support with automatic hotend detection
PPS and PPA filament presets for the HT hotend
PVA and BVOH filament presets
Filament color support
Tool mapping presets and Smart mapping
Automatic Z-axis alignment on uneven bed
Runout Reaction setting for instant or delayed runout handling (#5423)

Changes and improvements

New versioning policy
Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
Reorganized Tune menu [6.9.0]
Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
Stuck filament dialog now offers Ignore and Disable options [6.9.0]
Improved Nozzle Wiper cleaning [6.10.1]
Parking now lifts the Z axis faster [6.10.2]
Heater selftest now lowers the bed further to leave room for hands [6.9.1]
Chamber vents now close automatically at the end of a print [6.9.0]
Filament sensor selftest now detects a disconnected sensor [6.9.0]
G-code lines sent over USB/serial that are too long now show a warning
PrusaLink file downloads now keep long file names
Prusa Connect now shows changed chamber, fan and light values within seconds
MMU filament menu now shows the loaded filament and its color [MMU]

Fixes

Improved security and robustness
Fixed unreliable homing [C1/+] [6.9.1]
Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
Fixed chamber temperature serial reporting format
Fixed an extra blob of filament when resuming after a power failure [6.9.0]
Fixed settings being lost when power was cut while they were being saved [6.10.1]
Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
Fixed the Not enough tools G-code check blocking prints with no way to bypass it
Fixed a crash when the door was opened during homing
Fixed wrong remaining time after resuming from a power failure [6.9.0]
Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
Fixed a crash on the print preview screen
Fixed text overflowing on the factory reset screen
Fixed a crash when changing Front PTFE Length [MMU]
Fixed tool mapping being ignored when starting a print from Prusa Connect
Display glitch recovery now also works on error and boot screens
Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.03

2023-10-31T00:00:00+00:00

変更 1.03

Updated with instructions for MK3.9 upgrade

MK3.9

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features

HT hotend support with automatic hotend detection
PPS and PPA filament presets for the HT hotend
PVA and BVOH filament presets
Filament color support
Tool mapping presets and Smart mapping
Automatic Z-axis alignment on uneven bed
Runout Reaction setting for instant or delayed runout handling (#5423)

Changes and improvements

New versioning policy
Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
Reorganized Tune menu [6.9.0]
Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
Stuck filament dialog now offers Ignore and Disable options [6.9.0]
Improved Nozzle Wiper cleaning [6.10.1]
Parking now lifts the Z axis faster [6.10.2]
Heater selftest now lowers the bed further to leave room for hands [6.9.1]
Chamber vents now close automatically at the end of a print [6.9.0]
Filament sensor selftest now detects a disconnected sensor [6.9.0]
G-code lines sent over USB/serial that are too long now show a warning
PrusaLink file downloads now keep long file names
Prusa Connect now shows changed chamber, fan and light values within seconds
MMU filament menu now shows the loaded filament and its color [MMU]

Fixes

Improved security and robustness
Fixed unreliable homing [C1/+] [6.9.1]
Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
Fixed chamber temperature serial reporting format
Fixed an extra blob of filament when resuming after a power failure [6.9.0]
Fixed settings being lost when power was cut while they were being saved [6.10.1]
Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
Fixed the Not enough tools G-code check blocking prints with no way to bypass it
Fixed a crash when the door was opened during homing
Fixed wrong remaining time after resuming from a power failure [6.9.0]
Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
Fixed a crash on the print preview screen
Fixed text overflowing on the factory reset screen
Fixed a crash when changing Front PTFE Length [MMU]
Fixed tool mapping being ignored when starting a print from Prusa Connect
Display glitch recovery now also works on error and boot screens
Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.03

2023-10-31T00:00:00+00:00

変更 1.03

Updated with instructions for MK3.9 upgrade

MK3.5

Firmware 7.0.0

2026-10-15T00:00:00+00:00

変更 7.0.0

New features

HT hotend support with automatic hotend detection
PPS and PPA filament presets for the HT hotend
PVA and BVOH filament presets
Filament color support
Tool mapping presets and Smart mapping
Automatic Z-axis alignment on uneven bed
Runout Reaction setting for instant or delayed runout handling (#5423)

Changes and improvements

New versioning policy
Bed now moves further down after finishing, pausing or stopping a print [6.9.0]
Reorganized Tune menu [6.9.0]
Tool mapping is now preserved when reprinting a job [6.9.0]
New Customize button for tweaking a loaded filament
Stuck filament dialog now offers Ignore and Disable options [6.9.0]
Improved Nozzle Wiper cleaning [6.10.1]
Parking now lifts the Z axis faster [6.10.2]
Heater selftest now lowers the bed further to leave room for hands [6.9.1]
Chamber vents now close automatically at the end of a print [6.9.0]
Filament sensor selftest now detects a disconnected sensor [6.9.0]
G-code lines sent over USB/serial that are too long now show a warning
PrusaLink file downloads now keep long file names
Prusa Connect now shows changed chamber, fan and light values within seconds
MMU filament menu now shows the loaded filament and its color [MMU]

Fixes

Improved security and robustness
Fixed unreliable homing [C1/+] [6.9.1]
Fixed the Wi-Fi connection hanging after a communication error [6.10.2]
Fixed the PNG thumbnail of plain G-code files not showing in Prusa Connect
Fixed chamber temperature serial reporting format
Fixed an extra blob of filament when resuming after a power failure [6.9.0]
Fixed settings being lost when power was cut while they were being saved [6.10.1]
Fixed retract or purge running on a nozzle cooled down by the safety timer [6.9.0]
Fixed the Not enough tools G-code check blocking prints with no way to bypass it
Fixed a crash when the door was opened during homing
Fixed wrong remaining time after resuming from a power failure [6.9.0]
Fixed factory reset of the HW configuration not resetting calibrations [6.9.0]
Fixed M340 refusing to set the syslog host when metrics were allowed [6.9.0]
Fixed a crash on the print preview screen
Fixed text overflowing on the factory reset screen
Fixed a crash when changing Front PTFE Length [MMU]
Fixed tool mapping being ignored when starting a print from Prusa Connect
Display glitch recovery now also works on error and boot screens
Fixed not saving a crash dump on a red screen error (RSOD) [6.9.0]

Handbook 1.00

2024-02-05T00:00:00+00:00

変更 1.00

Initial online version

MK3S+

Firmware 3.14.1

2024-11-28T00:00:00+00:00

変更 3.14.1

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

Handbook 3.18

2023-01-26T00:00:00+00:00

変更 3.18

Several small changes

MMU2S

Firmware 3.14.1 (3.0.3)

2024-11-28T00:00:00+00:00

変更 3.14.1 (3.0.3)

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

Handbook 1.2

2020-11-24T00:00:00+00:00

変更 1.2

Changes related to MK3S+ release

MINI

Firmware 7.0.0

2026-10-15T00:00:00+00:00