Version 3.2.0-b1+1

Compatible files:

• RepRapFirmware 3.2.0-b1
• DuetWebControl 3.2.0-b1

Changed behaviour:

• Permissions are now required for DSF commands for executables running in /opt/dsf/plugins
• Simulation times are automatically written to G-code files
• Increased API level due to object model changes
• Renamed namespace DuetAPI.Machine to DuetAPI.ObjectModel and MachineModel to ObjectModel

Bug fixes:

• DCS service file contained an invalid CPU priority
• Event logging via M929 was not working
• Macro files with an unknown start code were not properly cancelled by M99/M292 P1

Known issues:

• Security permissions are not enforced via AppArmor yet (and they are still subject to change)
• Package dependencies are not yet installed when a plugin is installed

Hotfixes since 3.2.0-b1:

• DCS didn't have permission to call statfs when running as dsf user

Version 3.1.1

Compatible files:

• RepRapFirmware 3.1.1
• DuetWebControl 3.1.1

Changed behaviour:

• Increased API level due to new object model fields
• Code replies from the firmware are now trimmed at the end right after receipt

Bug fixes:

• Final replies from system macros were discarded
• Substituted macro filenames were incorrect in the DCS log
• Codes requesting message boxes could be executed twice
• Message boxes could be closed internally in DCS when not supposed to
• Codes from pause.g were cancelled under certain circumstances

Version 3.1.0

Compatible files:

• RepRapFirmware 3.1.0
• DuetWebControl 3.1.0

Changed behaviour:

• Duplicate code parameters are now ignored
• If M122 cannot obtain locks in DCS within 2s, the lock is ignored
• SPI poll delay is skipped during updates

Bug fixes:

• When pausing a print at the end of a file, the file was closed on resume
• M500 P10 did not work
• DCS parameter for updates (-u) was broken if another instance was not started
• Whole-line comments were not truncated before they were sent to RRF
• Only the first filament usage was parsed from files generated by Prusa Slicer
• M505 did not return the current sys directory when invoked without parameters
• Whole-line comments preceding a code that requests a macro file could cause the code to be executed twice

Version 2.2.0

Compatible files:

• RepRapFirmware 3.01-RC12
• DuetWebControl 2.1.7

Changed behaviour:

• Changed letter of unprecedented parameters from '\0' to '@'
• Increased default and minimum API version number to 7
• Whole line comments are now sent to RepRapFirmware

Known issues:

• Print/Simulation times are not written to G-code files
• Codes with invalid expressions may not instantly terminate a macro or job file

Bug fixes:

• Expressions in square brackets were not evaluatated
• M500 wrote workplace coordinates without offsetting the indices by 1

Version 2.1.3

Compatible files:

• RepRapFirmware 3.01-RC11
• DuetWebControl 2.1.6

Changed behaviour:

• Increased API version number because fans[].actualValue is now nullable
• Warning message is shown in the DCS log when API clients with an old version number connect

Known issues:

• Print/Simulation times are not written to G-code files
• Comments for object cancellation detection are not parsed (work-around is to use M486 directly)
• Codes with invalid expressions may not instantly terminate a macro or job file

Bug fixes:

• Unchanged arrays could be reported in Patch subscription mode
• Initial query in Patch mode was not working
• Web server did not clear HTTP endpoints under certain circumstances
• echo expressions were not parsed correctly if strings contained commas
• Changing the system time just before a controller reset could lead to an abnormal program termination

Version 2.1.2

Compatible files:

• RepRapFirmware 3.01-RC10
• DuetWebControl 2.1.5

Known issues:

• Print/Simulation times are not written to G-code files
• Comments for object cancellation detection are not parsed (work-around is to use M486 directly)
• Codes with invalid expressions may not instantly terminate a macro or job file

Bug fixes:

• Leading G53 wasn't added to string representations of parsed codes
• Starting DCS with the fifo CPU scheduler via systemd could lead to maximum CPU usage
• Some nullable RRF OM fields were not declared as such in the DSF OM

Version 2.1.1

Compatible files:

• RepRapFirmware 3.01-RC10
• DuetWebControl 2.1.5

Changed behaviour:

• If DCS cannot establish a connection to RRF, the error message is always printed
• Code parser exceptions report the filename
• File info parser scans parsed comments in the file footer like in the file header
• Increased priority in systemd service for DCS and start it at basic.target instead of multi-user.target

Known issues:

• Print/Simulation times are not written to G-code files
• Comments for object cancellation detection are not parsed (work-around is to use M486 directly)
• Codes with invalid expressions may not instantly terminate a macro or job file

Bug fixes:

• Expression code parameters were not properly printed in the log
• Double quotes were incorrectly parsed
• limits key was not updated in the object model
• Height map file was overwritten by the RepRapFirmware object model
• G29 S1/M375 didn't print an offset warning when a heightmap was loaded without homing Z first
• Order of M0/M1 and notification about the print being cancelled was wrong
• Some internal fields of the Code object were incorrectly serialized
• Codes could finish in the wrong order
• PrusaSlicer print time and layer height were not parsed correctly
• Expression fields were always evaluated from the DSF object model

Version 2.1.0

Compatible files:

• RepRapFirmware 3.01-RC9
• DuetWebControl 2.1.4

Changed behaviour:

• Implemented conditional G-code according to https://duet3d.dozuki.com/Wiki/GCode_Meta_Commands (same command set as supported by RRF)
• DuetAPI version number has been increased, however the previous one is still accepted
• DuetAPI uses relaxed JSON escaping like in the DCS settings file
• Added new fields stepsPerMm and microstepping to Axis amd Extruder items to DuetAPI
• Increased maximum size of messages being sent to the firmware from 256 bytes to 4KiB
• Removed SpiPollDelaySimulating and renamed SpiPollDelaySimulating to FileBufferSize in the DCS settings (the latter is now used for code files, too)
• Simple text-based codes no longer report when they are cancelled

Known issues:

• Print/Simulation times are not written to G-code files
• Comments for object cancellation detection are not parsed (work-around is to use M486 directly)

Bug fixes:

• DuetControlServer could sporadically hang when printing a file
• Fixed deadlock that could occur when the SPI task tried to resolve pending requests
• M20 was not fully compatible with RRF
• Concatenating code parser exception caused the line to be appended multiple times
• Filament sensors and move.kinematics were neither properly updated nor serialized
• Codes of macros being cancelled were sometimes aborted with a wrong exception

Version 2.0.0

Compatible files:

• RepRapFirmware 3.01-RC8
• DuetWebControl 2.1.3

Changed behaviour:

• M999 stops DCS. This behaviour can be changed by starting it with the -r command-line argument or by changing the config value NoTerminateOnReset to true
• Plugins using prior API versions are no longer compatible and require new versions of the API libraries
• Codes M21+M22 are not supported and will throw an error
• Code expressions are now preparsed and Linux object model fields are substituted before the final evaluation

Known issues:

• Conditional G-codes (aka meta commands) except for echo are not supported yet
• Print/Simulation times are not written to G-code files
• Comments for object cancellation detection are not parsed (work-around is to use M486 directly)

Bug fixes:

• Added compatibility for G-code meta expressions
• When all macros were aborted the messages were not properly propagated to the start code(s)
• Some codes were incorrectly sent when aborting all files
• Some macro codes could be executed in the wrong order when multiple macros were invoked
• Code requests from the firmware could cause a deadlock

Version 1.3.2

Synchronized DSF and RRF object models
Certain already cancelled codes can be no longer sent to RRF
Rewrote most of the macro backend (preparation for conditional G-codes)
Improved invalidation methods of the new channel interface
DCS settings no longer require extensive escaping using \u characters and allow unicode chars in DuetAPI
Changed data type of job times from float to int and added lastDuration to job
Full object model is no longer queried when DCS is only started to update the firmware
Made IAP start code more robust
Improved logging
Added some more unit tests and other minor changes
Bug fix: DCS crashed when a heater fault occurred
Bug fix: Print time detection for Simplify3D was no longer working
Bug fix: Full object model was not queried after the firmware disconnected
Bug fix: Unchanged lists were transmitted in patch subscription mode
Bug fix: When the settings could not be loaded, no error message was displayed
Bug fix: Filament assignment was not working as intended
Bug fix: In patch mode, sometimes empty objects instead of null items were generated
Bug fix: Codes being finished could block other (macro) codes
Bug fix: Job.Layers was not populated
Bug fix: When prints were paused or cancelled, even macro codes were aborted
Bug fix: M28 didn't write M-codes
Bug fix: M28 didn't assume unprecedented parameters
Bug fix: Some cancellation tokens were not linked with the main program CT
Bug fix: Under certain circumstances macro codes were not cancelled
Bug fix: Macro codes waiting for a flush request could block the code execution
Bug fix: Prints without a detected slicer could not be started