Firmware and Toolbox version 10.3 focus on evolving features and functionality introduced with XC3 / XD3 / XS3 and version 10.3.
If an upgrade of your hardware is required and you are unsure how to handle this process, please contact your local DHD distributor - see List of DHD distributors.
Note
No version 10.3 update available yet for 52-7567 AES67 or 52-7580/7585/7080B Dante modules.
These modules can easily be operated with their respective firmware/kernel version 10.0 or 10.1 together with a Core running on version 10.3.
Remote Fadersbuses in a unified bus system with equivalent bus types & elementsRouting Rules for all buses (except PFL & Clean Feed)Console LED mapping menu for 52/MX/RX/SX fixed LEDsFixed ProcessingsFlex ProcessingsSnapshot TypeSnapshot NumberMixer SnapshotsVirtual Mixer Snapshots option tab in ToolboxMixer Snapshot Channel Mapping option tab in ToolboxSelectors: Load routings even if the loaded audio source doesn't match the local DeviceID in ToolboxAcknowledge Once & Acknowledge Each load modesChannels SnapshotsChannel Snapshot Types option tab in ToolboxShared Channels will be replaced by Remote Fader option within V10.3User administration now completely in System App –> User administration removed from Toolbox, Authorisation Groups remainPGM2 follows PGM1 option removedFunction Select removed –> much better options via TFT Views availablePools –> Pool or No Pool is supportedWith version 10.3 several changes are introduced. For this reason every existing v10.2 Toolbox Project needs to be validated before it can be used in version 10.3. For a seamless transition, we recommend planning with enough spare time to convert your Toolbox project.
Important
We strongly recommend to keep a copy of the original v10.2.x (.dp10) project file.
Project > Validate > Validate Project for Toolbox 10.3 use 
AUX to higher numbers (starting with the maximum PGM bus number + 1)PGM to become a native Bus element.WARNING messages in the Messages Section. Those messages inform you if your Toolbox project is using no longer supported hardware, if other problems occurred or if adjustments were done during conversion of the project. A double click on the message leads you to the hardware module or part of the configuration that is subject of the message. We recommend to check the following settings afterwards:
Encoder Elements with relation to AUX buses: Such elements now support a user defined label which you should set, otherwise these elements will show a generic label to the user.
Note
The upgrade and further updates are now rolled out within a single DeviceOS update package file.
This file can be applied like any other update file as known from before. The main difference is that all necessary software updates are now applied in one single step.
The file extension is:
xc3p DeviceOS for XC3 Cores.xd3p DeviceOS for XD3 Cores.
Important
The XD3 Update (Kernel & Firmware) takes approx. 2-3 minutes to finish. Do not switch off or restart the device during the update.
DeviceOS to the device via the System App > Service > Update Device menu. See here for detailed information.Bus system and the respective control elements.