Version 3.6.0-beta.1

New features:

• Upgraded base from .NET 6 to .NET 8
• Implemented high-performance JSON (de-)serialization in all areas using (custom) source generators
• .NET applications using DSF 3.6 libraries can be trimmed and/or AOT-compiled
• M111 can be used to change DCS logging parameters during runtime (see also M111 docs)
• Added MQTT support

API changes:

• Added new IPC command to rewrite codes being intercepted
• Python plugins are now installed installed in their own venv (thanks @stuartofmt)

Version 3.5.3

Compatible versions:

• RepRapFirmware 3.5.3
• DuetWebControl 3.5.3

Upgrade notes:

• If you are using a Raspberry Pi 5 and upgrade using apt, it may be necessary to restore the default config. To achieve this, run sudo rm /opt/dsf/conf/config.json after apt via SSH or using a Linux console. Without this step, you will get an error stating that the gpiochip device could not be opened. The underlying change came from a kernel change from Raspberry Pi, which brings the gpiochip numbering in line again with previous Raspberry Pi editions

API changes:

• Deprecated several methods due to upcoming changes in v3.6
• Added new preferred overloads for SetPluginData and PatchObjectModel

New features:

• M905 A parameter may be used to specify if the date and time shall be set via NTP

Bug fixes:

• Results from cancelled evaluation requests could be output
• Only resumable macros were aborted by DSF when a pause event was processed
• Fixed type of sensors.filamentMonitors[].calibrated
• Invoke internal "increment" codes asynchronously to fix spurious deadlocks
• M905 wasn't working any more due to missing permissions
• Fixed support for SSIDs with spaces
• Type of state.thisActive wasn't nullable
• Fixed support for M226/M600 preceding M98
• Fixed potential deadlock when deleting variables
• Fixed DWC startup issue in SBC mode caused by Chromium singleton lock

Version 3.5.3-rc.1

Compatible versions:

• RepRapFirmware 3.5.3-rc.1
• DuetWebControl 3.5.3-rc.1

API changes:

• Deprecated patch creation methods in the main object model class
• Deprecated current PatchObjectModel and SetPluginData calls in favour of new overload

Bug fixes:

• Added workaround to address Chromium singleton lock in the launch script
• Fixed potential deadlock when deleting variables
• Cancelled codes could invalidate the last known file position (pausing via M226)
• state.thisActive was not nullable

Version 3.5.2

Compatible versions:

• RepRapFirmware 3.5.2
• DuetWebControl 3.5.2

Changed behaviour:

• M409 K"network" and M409 K"volumes" are now handled by DSF and DCS increments the corresponding RRF sequence numbers when necessary
• DCS service may no longer be moved to swap memory

New features:

• Added proxy support to custom HTTP endpoints

Bug fixes:

• M21 Pnnn could output an error when PanelDue requested an existing mount point to be mounted again
• Some emulated rr_ replies did not use the default DSF JSON serializer settings
• Fixed code param conversion error with expressions
• Plugin config files could be deleted on upgrade
• M554 was not working as intended

Version 3.5.2-rc.1

Compatible versions:

• RepRapFirmware 3.5.2-rc.1
• DuetWebControl 3.5.2-rc.1

Changed behaviour:

• DCS program memory cannot be moved to swap

New features:

• Added proxy support to custom HTTP endpoints

Bug fixes:

• Plugin config files were incorrectly deleted on upgrade
• Fixed M554 (set gateway/DNS server)
• Fixed code param conversion error with expressions (code.TryGet* methods)
• Some HTTP endpoints were using wrong JSON serializer options

Version 3.5.1

There were no significant changes since v3.5.0, so this changelog includes all changes since v3.4.6:

Changed behaviour:

Compatible versions:

• RepRapFirmware 3.5.1
• DuetWebControl 3.5.1

Upgrade notes:

• You MUST be on RepRapFirmare 3.5-b1 in order to process jobs. It will NOT work with 3.4.x or older!

API changes:

• Introduced new code interceptor option to auto-expand expression parameters for filtered codes (defaults to true)
• Added new sbcConfigFiles field to plugin manifest. These files are not overwritten on upgrade
• Nested plugin data values can be queried in expressions (e.g. echo plugins.foobar.data.myObj.myProp)
• Added recursive parameter to HTTP file/directory delete request
• Added recursive delete functionality for RRF delete requests
• Flush IPC command can be optionally used to synchronize both file streams
• Enabled Nullable type checks throughout DSF projects
• Added support for null parameter values (e.g. X in G28 X)
• Consolidated API exception classes in DuetAPI library
• Changed async code parser to use Stream type instead of StreamReader
• The scanner key has been removed from the object model. It is no longer supported

Changed behaviour:

• Macro start/end events are logged as debug instead of info messages if they originate from the daemon input channel
• If a file is supposed to use two file readers, it must be forked via M606 S1
• result variable is no longer maintained by DSF
• If DCS fails to start, there is now a delay of 5 seconds between restart attempts
• Index web file served from the web server is never cached and must be revalidated by the web browser on reload
• If a RRF plugin contains daemon.g, it is renamed to daemon.g.bak on upgrade
• Moved userSessions root key to new sbc key
• M552 S1 unblocks WiFi automatically using rfkill
• Introduced new "sbc" root key in favour of deprecated state.dsf... properties
• Removed httpEndpoints root key in favour of sbc?.dsf.httpEndpoints
• Open message boxes are automatically closed in the DSF OM when the controller is disconnected
• Removed obsolete move.workspaceNumber field
• Code parser is much more sensitive to invalid code parameters
• Error messages from macros/job files are more condensed to get closer to messages from RRF
• When a code cannot be read (i.e. code input is interrupted), the file is aborted immediately

New features:

• Object model and M122 report if 64-bit DCS build is used
• Added support for WiFi scanning (M587.1/M587.2)
• Added support for NetworkManager so that network M-codes can be used on Debian Bookworm
• M997 S2 can be used to update the system via apt update/unattended-upgrades on the latest DuetPi version (requires Debian Bookworm)
• M997 S2 V"<version>" can be used to install another DSF version (includes automatic update to corresponding RRF version) on DuetPi
• M997 S2 F"unstable" or M997 S2 F"stable" can be used to configure the package feed on DuetPi
• Prepared Debian Bookworm support in the DWC launch script
• WiFi country may now be reported and updated using DuetPiManagementPlugin
• Added new SBC option for plugins to auto-restart them in case of unexpected crashes
• Added new object model fields introduced by RepRapFirmware
• When files are uploaded, they are uploaded to a ".part" file before they are moved into place
• Added fileread and single-char support using apostrophes like in RRF
• Added auto flush option to code interceptor API. This is preferred to avoid race conditions under certain circumstances
• Added new pip install script that also checks for built-in modules (thanks stuartofmt)
• Added support for standalone mode HTTP session keys to DuetHttpClient library
• SSID is now reported in network.interfaces[] if applicable
• Added new HTTP endpoint /machine/model as an alternative to /machine/status
• Added support for M472 (delete file or directory)
• Added support for custom array variables and for assigning individual items
• echo can be used to append contents to a file without NL (aka echo >>>"file" "data")
• Executing codes do not need an individual task any more, instead they are now handled by a new pipeline architecture
• Added support for two file channels, new message box types, and many other improvements made in RRF
• Rewrote much of the meta G-code expression pre-parser and added ability to define custom functions (not yet available via API)
• Added rr_ compatibility layer to DuetWebServer (HTTP calls in standalone mode)

Bug fixes:

• DCS could not determine if a network adapter uses DHCP or a static IPv4 address
• DPS no longer redirects stdio/stderr to DPS logger unless requested (systemd takes care of that anyway)
• Fixed file handling with boards that only provide a single file channel
• move.axes can be queried sequentially to support up to 30 configured axes
• Changed documentation generator to include <see cref="..."> statements
• 'g parameters were not correctly parsed
• Added and tested new axis letters to code parser
• Fixed type of move.segmentation.segmentsPerSec
• If a connection intercepting a code sent a code to another channel, that code was incorrectly assigned the same macro file (if any)
• M929 always required a log filename (affected only v3.5)
• echo could be executed on inactive channels (e.g. File2)
• M122 could throw an exception if there were remaining codes in the Executed code pipeline handler
• Job file processor didn't synchronize OM right after the print started, potentially starting with an invalid inputs[].active state
• Identical expression requests yielded the same result if requested on two different code channels
• Fixed AppArmor webcam profile to support Spyglass
• Even number values containing dots were interpreted as integers and not as floats
• Fixed handling of non-ASCII characters in G-code parser
• Better enforce maximum length of arguments for meta G-code keywords
• Invalid enum values (in particular filament monitor types) could crash DCS
• Fixed IPC command to evaluate custom expressions
• Obsolete object model fields were not queried
• When custom endpoints attempted to return a status code, DWS incorrectly tried to write a body response as well
• Fixed M30 support
• Fixed default DateTime format in the object model
• WebSocket session key wasn't optional if no password set
• Corrected type of direct display screen instances in the OM definition
• Start-up errors were incorrectly set after booting
• Adjusted AppArmor permissions for webcam access on Debian Bullseye
• New DSF implementation of exists() function did not work with local/parameter variables
• Fixed potential deadlock caused by code interceptors
• G2/G3 may be repeated as well like G0/G1 in Fanuc mode
• Fixed removal of plugin www files on upgrade/uninstall
• M550 did not update /etc/hosts causing potential problems if no network interface was active
• SBC values in variable indices were not substituted in set command
• Line numbers could be off when handling exceptions from codes
• Fixed issue where missing DNS servers could crash DCS
• Fixed file enumeration in DuetPiManagementPlugin plugin manifest
• Race condition could lead to macro filestream being disposed twice causing potential crash of DCS
• Added missing variable declaration to DSF build script
• Fixed expression queries of plugin values
• Fixed parameter parsing for values consisting of special number formats
• Fixed event log support via M929
• ok was not output after DSF error messages potentially upsetting Repetier Server
• Sometimes code pipeline elements could be marked busy incorrectly leading to potential deadlocks
• Fixed support for M0/M1/M2 as well as underscores in variable names
• Added work-around for non-conform rr_upload requests with invalid content type
• Fixed type of tools[].feedForward and corrected default sensors.probes[].travelSpeed value
• Fixed support for update.sh in update packages (dsf-update.zip which requires RootPluginSupport)
• Updated stat import to add support for recent kernels (thanks Loïc)
• Removed obsolete OM assignment from Job processor
• When a too long code was attempted to be serialized, DCS crashed
• Fixed DateTime encoding
• Code parser could terminate strings too early
• Fixed issue when parsing the end of a file where a multi-byte character could introduce position offsets leading to errors

Version 3.5.0

Compatible versions:

• RepRapFirmware 3.5.0
• DuetWebControl 3.5.0

Upgrade notes:

• You MUST be on RepRapFirmare 3.5-b1 in order to process jobs. It will NOT work with 3.4.x or older!

API changes:

• Introduced new code interceptor option to auto-expand expression parameters for filtered codes (defaults to true)
• Added new sbcConfigFiles field to plugin manifest. These files are not overwritten on upgrade
• Nested plugin data values can be queried in expressions (e.g. echo plugins.foobar.data.myObj.myProp)
• Added recursive parameter to HTTP file/directory delete request
• Added recursive delete functionality for RRF delete requests
• Flush IPC command can be optionally used to synchronize both file streams
• Enabled Nullable type checks throughout DSF projects
• Added support for null parameter values (e.g. X in G28 X)
• Consolidated API exception classes in DuetAPI library
• Changed async code parser to use Stream type instead of StreamReader
• The scanner key has been removed from the object model. It is no longer supported

Changed behaviour:

• If a file is supposed to use two file readers, it must be forked via M606 S1
• result variable is no longer maintained by DSF
• If DCS fails to start, there is now a delay of 5 seconds between restart attempts
• Index web file served from the web server is never cached and must be revalidated by the web browser on reload
• If a RRF plugin contains daemon.g, it is renamed to daemon.g.bak on upgrade
• Moved userSessions root key to new sbc key
• M552 S1 unblocks WiFi automatically using rfkill
• Introduced new "sbc" root key in favour of deprecated state.dsf... properties
• Removed httpEndpoints root key in favour of sbc?.dsf.httpEndpoints
• Open message boxes are automatically closed in the DSF OM when the controller is disconnected
• Removed obsolete move.workspaceNumber field
• Code parser is much more sensitive to invalid code parameters
• Error messages from macros/job files are more condensed to get closer to messages from RRF
• When a code cannot be read (i.e. code input is interrupted), the file is aborted immediately

New features:

• Object model and M122 report if 64-bit DCS build is used
• Added support for WiFi scanning (M587.1/M587.2)
• Added support for NetworkManager so that network M-codes can be used on Debian Bookworm
• M997 S2 can be used to update the system via apt update/unattended-upgrades on the latest DuetPi version (requires Debian Bookworm)
• M997 S2 V"<version>" can be used to install another DSF version (includes automatic update to corresponding RRF version) on DuetPi
• M997 S2 F"unstable" or M997 S2 F"stable" can be used to configure the package feed on DuetPi
• Prepared Debian Bookworm support in the DWC launch script
• WiFi country may now be reported and updated using DuetPiManagementPlugin
• Added new SBC option for plugins to auto-restart them in case of unexpected crashes
• Added new object model fields introduced by RepRapFirmware
• When files are uploaded, they are uploaded to a ".part" file before they are moved into place
• Added fileread and single-char support using apostrophes like in RRF
• Added auto flush option to code interceptor API. This is preferred to avoid race conditions under certain circumstances
• Added new pip install script that also checks for built-in modules (thanks stuartofmt)
• Added support for standalone mode HTTP session keys to DuetHttpClient library
• SSID is now reported in network.interfaces[] if applicable
• Added new HTTP endpoint /machine/model as an alternative to /machine/status
• Added support for M472 (delete file or directory)
• Added support for custom array variables and for assigning individual items
• echo can be used to append contents to a file without NL (aka echo >>>"file" "data")
• Executing codes do not need an individual task any more, instead they are now handled by a new pipeline architecture
• Added support for two file channels, new message box types, and many other improvements made in RRF
• Rewrote much of the meta G-code expression pre-parser and added ability to define custom functions (not yet available via API)
• Added rr_ compatibility layer to DuetWebServer (HTTP calls in standalone mode)

Bug fixes:

• DCS could not determine if a network adapter uses DHCP or a static IPv4 address
• DPS no longer redirects stdio/stderr to DPS logger unless requested (systemd takes care of that anyway)
• Fixed file handling with boards that only provide a single file channel
• move.axes can be queried sequentially to support up to 30 configured axes
• Changed documentation generator to include <see cref="..."> statements
• 'g parameters were not correctly parsed
• Added and tested new axis letters to code parser
• Fixed type of move.segmentation.segmentsPerSec
• If a connection intercepting a code sent a code to another channel, that code was incorrectly assigned the same macro file (if any)
• M929 always required a log filename (affected only v3.5)
• echo could be executed on inactive channels (e.g. File2)
• M122 could throw an exception if there were remaining codes in the Executed code pipeline handler
• Job file processor didn't synchronize OM right after the print started, potentially starting with an invalid inputs[].active state
• Identical expression requests yielded the same result if requested on two different code channels
• Fixed AppArmor webcam profile to support Spyglass
• Even number values containing dots were interpreted as integers and not as floats
• Fixed handling of non-ASCII characters in G-code parser
• Better enforce maximum length of arguments for meta G-code keywords
• Invalid enum values (in particular filament monitor types) could crash DCS
• Fixed IPC command to evaluate custom expressions
• Obsolete object model fields were not queried
• When custom endpoints attempted to return a status code, DWS incorrectly tried to write a body response as well
• Fixed M30 support
• Fixed default DateTime format in the object model
• WebSocket session key wasn't optional if no password set
• Corrected type of direct display screen instances in the OM definition
• Start-up errors were incorrectly set after booting
• Adjusted AppArmor permissions for webcam access on Debian Bullseye
• New DSF implementation of exists() function did not work with local/parameter variables
• Fixed potential deadlock caused by code interceptors
• G2/G3 may be repeated as well like G0/G1 in Fanuc mode
• Fixed removal of plugin www files on upgrade/uninstall
• M550 did not update /etc/hosts causing potential problems if no network interface was active
• SBC values in variable indices were not substituted in set command
• Line numbers could be off when handling exceptions from codes
• Fixed issue where missing DNS servers could crash DCS
• Fixed file enumeration in DuetPiManagementPlugin plugin manifest
• Race condition could lead to macro filestream being disposed twice causing potential crash of DCS
• Added missing variable declaration to DSF build script
• Fixed expression queries of plugin values
• Fixed parameter parsing for values consisting of special number formats
• Fixed event log support via M929
• ok was not output after DSF error messages potentially upsetting Repetier Server
• Sometimes code pipeline elements could be marked busy incorrectly leading to potential deadlocks
• Fixed support for M0/M1/M2 as well as underscores in variable names
• Added work-around for non-conform rr_upload requests with invalid content type
• Fixed type of tools[].feedForward and corrected default sensors.probes[].travelSpeed value
• Fixed support for update.sh in update packages (dsf-update.zip which requires RootPluginSupport)
• Updated stat import to add support for recent kernels (thanks Loïc)
• Removed obsolete OM assignment from Job processor
• When a too long code was attempted to be serialized, DCS crashed
• Fixed DateTime encoding
• Code parser could terminate strings too early
• Fixed issue when parsing the end of a file where a multi-byte character could introduce position offsets leading to errors

Version 3.5.0-rc.4

Compatible versions:

• RepRapFirmware 3.5.0-rc.4
• DuetWebControl 3.5.0-rc.4

API changes:

• Introduced new code interceptor option to auto-expand expression parameters for filtered codes (defaults to true)
• Added new sbcConfigFiles field to plugin manifest. These files are not overwritten on upgrade
• Nested plugin data values can be queried in expressions (e.g. echo plugins.foobar.data.myObj.myProp)

Changed behaviour:

• If a file is supposed to use two file readers, it must be forked via M606 S1
• result variable is no longer maintained by DSF

New features:

• Object model and M122 report if 64-bit DCS build is used
• Added support for WiFi scanning (M587.1/M587.2)

Bug fixes:

• DCS could not determine if a network adapter uses DHCP or a static IPv4 address
• DPS no longer redirects stdio/stderr to DPS logger unless requested (systemd takes care of that anyway)
• Fixed file handling with boards that only provide a single file channel
• move.axes can be queried sequentially to support up to 30 configured axes
• Changed documentation generator to include <see cref="..."> statements
• 'g parameters were not correctly parsed
• Added and tested new axis letters to code parser
• Fixed type of move.segmentation.segmentsPerSec
• If a connection intercepting a code sent a code to another channel, that code was incorrectly assigned the same macro file (if any)

Version 3.5.0-rc.3

Compatible versions:

• RepRapFirmware 3.5.0-rc.3
• DuetWebControl 3.5.0-rc.3

New features:

• Added support for NetworkManager so that network M-codes can be used on Debian Bookworm
• M997 S2 can be used to update the system via apt update/unattended-upgrades on the latest DuetPi version (requires Debian Bookworm)
• M997 S2 V"<version>" can be used to install another DSF version (includes automatic update to corresponding RRF version) on DuetPi
• M997 S2 F"unstable" or M997 S2 F"stable" can be used to configure the package feed on DuetPi

Bug fixes:

• M929 always required a log filename (affected only v3.5)
• echo could be executed on inactive channels (e.g. File2)
• M122 could throw an exception if there were remaining codes in the Executed code pipeline handler
• Job file processor didn't synchronize OM right after the print started, potentially starting with an invalid inputs[].active state
• Identical expression requests yielded the same result if requested on two different code channels
• Fixed AppArmor webcam profile to support Spyglass

Version 3.5.0-rc.2

Compatible versions:

• RepRapFirmware 3.5.0-rc.2
• DuetWebControl 3.5.0-rc.2

Changed behaviour:

• If DCS fails to start, there is now a delay of 5 seconds between restart attempts
• Index web file served from the web server is never cached and must be revalidated by the web browser on reload

New features:

• Prepared Debian Bookworm support in the DWC launch script
• WiFi country may now be reported and updated using DuetPiManagementPlugin
• Added new SBC option for plugins to auto-restart them in case of unexpected crashes
• Added new object model fields introduced by RepRapFirmware
• When files are uploaded, they are uploaded to a ".part" file before they are moved into place

Bug fixes:

• Even number values containing dots were interpreted as integers and not as floats
• Fixed handling of non-ASCII characters in G-code parser
• Better enforce maximum length of arguments for meta G-code keywords
• Invalid enum values (in particular filament monitor types) could crash DCS
• Fixed IPC command to evaluate custom expressions
• Obsolete object model fields were not queried
• When custom endpoints attempted to return a status code, DWS incorrectly tried to write a body response as well