Version 3.7.0-beta.2

New features:

• Added optional NativeAOT builds via the AotPublish property (off by default), a container to cross-build for linux-arm, linux-arm64 and linux-x64, and a --aot packager option that drops the duetruntime dependency
• Added SetWifiCountry to set the WiFi regulatory domain
• Added optional key path filters to GetObjectModel
• Software upgrade progress is reported during M997 S2, including installs from .deb or dsf-update.zip files; DuetPiManagementPlugin reports the configured package feed as plugin data
• Added IpcJsonBufferSize setting to configure the IPC receive chunk size
• Added README files to the NuGet packages

API changes:

• Bumped the IPC protocol version to 13
• Removed SetObjectModel, LockObjectModel and UnlockObjectModel; PatchObjectModel is now the only object model writer and locks itself internally
• Added a generated model descriptor API for reflection-free property enumeration and get/set by name
• Added ConfigureAwait to further public APIs
• DuetSharedLibrary no longer ships XML documentation

Object model changes:

• Added boards[].timeout, move.currentMove.filePosition and state.restorePoints[].gCommandNumber
• Added sbc.upgrade with message and an optional progress value while a software upgrade is running

Changed behaviour:

• Replaced ImageSharp with an internal PNG encoder because it requires a paid license key as of v4.0; icon pixel data is only decoded when the thumbnail content is requested
• Replaced System.Device.Gpio and System.Device.Spi with native drivers
• Greatly reduced GC pressure and IPC allocations across DCS (chunked JSON reads, pooled buffers, gathered writes, source-generated log messages) and DCS now runs with SustainedLowLatency
• Reduced reflection use across the object model pipeline
• Max code buffer space per channel is computed dynamically, which greatly improves throughput when simulating files with only one motion system
• Migrated DuetWebServer to minimal APIs and the slim host builder
• Regex settings are plain patterns now (existing configuration files are migrated) and configured lists replace the defaults instead of extending them
• Removed SocketPollInterval; dead peers are detected when a new plugin service registers
• Network protocol initialization runs in parallel and no longer aborts plugin start-up when one service is unavailable
• M997 S2 and system package installations run in their own transient systemd units (dsf-update and dsf-package) so they are no longer terminated when the upgrade replaces the services that started them; systemctl status dsf-update reports whether one is still running
• Removed the KillMode override from duetpluginservice-root, so child processes started by root plugins are stopped together with the service; plugins that need work to outlive a service restart must run it in their own systemd unit
• Improved error messages in USB mode, added a delay between USB reconnect attempts, and the transfer phase is reported on SPI disconnect
• More robust pre/post install scripts when systemd is not running
• Updated NuGet dependencies to the latest versions

Bug fixes:

• Fixed a deadlock in the plugin subsystem
• Fixed IAP updates over USB and bad responses when exchanging headers
• M997 could be cancelled prematurely returning an invalid error message
• M997 S2 reported success when the update had failed
• M997 S2 was silently ignored when DuetPiManagementPlugin was not running
• M997 S0:2 was not handled by DuetPiManagementPlugin
• install-dsf.sh was invoked by name although it is not on PATH
• M999 replies were lost because DCS stopped before they reached the clients
• Fixed exceptions being sent as success responses in the code stream and on malformed JSON
• Fixed expression evaluation of enums to use their JSON name
• Fixed CodeInterception waiting for a pulse from a terminated processor
• Truncated icon thumbnails yielded garbage pixels instead of being rejected
• PluginManager re-serialized plugin data instead of printing it raw
• CodeStream was packaged into duetruntime instead of duettools
• A locally modified configuration file prevented unattended upgrades of the DSF packages
• Leftover plugin processes were killed by PID after the process had already exited
• Improved logging behaviour on failed start-ups

Version 3.7.0-beta.1 (changes since 3.6.3)

New features:

• Migrated all projects to .NET 10 (dropped .NET 9 support)
• Completely overhauled DCS architecture using proper hosted services (dependency injection)
• Migrated all projects to System.CommandLine for better parameter parsing
• Added support for SBC mode over USB; communication method (USB/SPI) is now reported via the object model
• Added support for M581.1 (event triggers) with SBC-side fields
• Added support for M36.2
• Added support for explicit line numbers
• Added support for the ADS131 temperature sensor
• Improved pause handling with two motion systems
• Greatly improved code and expression parsers, including decimal-place support when evaluating expressions (#192)
• Secure delete request forwarded to RRF
• Added DSF_SOCKET_PATH environment variable to override the socket location
• Added a way to flag when plugins have fully started (NotifyPluginStarted)
• Plugin www files are now installed via symlinks
• Plugin IDs are now case-insensitive

Object model changes:

• Added inputs[].currentFile, move.axes[].stepPos, job.timesLeft.toPause
• Added new feedforward fields and position reporting for pulsed filament monitors
• Added bedHeaterMapping and chamberHeaterMapping
• Added pressAdv; deprecated pressureAdvance
• Made move.extruders[].rawPosition obsolete and removed obsolete keys from move.shaping

Changed behaviour:

• Increased CPU and IO scheduling priority for DCS
• Changed the DuetAPIClient namespace layout and added ConfigureAsync to all public APIs (source-breaking for API consumers)
• More robust postinst scripts; install scripts no longer prompt for a password via systemctl; explicit dsf user group assignment on upgrade
• rr_model/M409 omit null values unless F"n" is given

Bug fixes:

• Fixed axis re-racking in certain situations, UTF-8 BOM handling in footers, and thumbnail offset/overflow bugs
• Fixed M552 S1 for Ethernet profiles/NetworkManager, M586 P0 Rnnn, M589, resume after pause, M226 pause offsets, and an M0-at-end-of-file regression
• Numerous plugin-service stability and startup fixes