Changelog

1.1.0.45

October 23rd, 2025

• Updated Somnium Service to version 2.8.0. 
  • New somnium software components replace legacy vrg components. 
    • Legacy components will be disabled automatically but may still be present on your system. 
  • New somnium configuration files, and folder structure. 
    • These are not compatible with legacy configuration files, so any changes to Somnium configuration will need to be reapplied manually in Somnium VR1 Tool. 
  • Updated payloads and dependencies. 
• Updated Somnium OpenXR Runtime to version 1.0.0. 
  • Improved performance with most OpenXR applications (approximately 30-40% increase when compared to previous stable version). 
  • Added support for multiple display frequencies (72Hz, 90Hz, 120Hz [experimental]). 
    • The display mode can be changed on Headset-Screen page, but it requires compatible firmware version (1.1.5.128). 
  • Compatibility fixes for NVIDIA RTX 50xx GPUs. 
  • Mixed Reality updates: 
    • Improved image quality, auto exposure, and color profiles. 
    • Added new ultrawide MR camera mode (3968×2352,75FPS). 
    • Added new compensation options (Mixed Reality – General page). 
  • Eye Tracking updates: 
    • Improved eye tracking algorithms (better calibration, more precise tracking). 
    • Added special eye tracking calibration mode for VROptician lenses (to make calibration with lenses easier). To use this mode enable the Lens Inserts option on the Headset – Eyes page before calibrating the eye tracking. 
    • Added additional eye tracking info messages to in-headset overlay. 
  • OpenXR Runtime status and installation: 
    • Improved OpenXR Runtime installation process.  
    • Added info about currently active OpenXR Runtime to Software – Drivers page. 
    • Added periodic check of OpenXR Runtime, to dynamically reflect any OpenXR changes made outside Somnium VR1 Tool. 
  • Software compatibility: 
    • Compatibility fixes for Unreal Engine 5.2 and newer. 
    • Compatibility fixes for OpenKneeBoard. 
    • Added support for dynamic foveated rendering in MSFS 2024. 
    • Improved compatibility with other OpenXR applications (DCS, iRacing, LMU, Falcon BMS, Autodesk VRED, etc.). 
  • Improved tracker-based motion cancellation for motion platforms. 
• Updated Somnium SteamVR Driver to version 3.5.0. 
  • Improved rendering pipeline. 
    • SteamVR now controls the whole rendering process and directly communicates with Somnium displays. 
    • Higher resolution of lens warping mesh. 
  • Added support for multiple display frequencies (72Hz, 90Hz, 120Hz [experimental]). 
    • The display mode can be changed directly in SteamVR Settings – General menu, but it requires compatible firmware version (1.1.5.128). 
  • Disabled UI elements in Somnium VR1 Tool which are not functional in SteamVR Driver mode (including info tooltip). 
  • Added native SteamVR overlays (Virtual Desktop, Eye Tracking, Mixed Reality). 
    • These overlays are now processed directly by SteamVR, so they are visible in SteamVR VR View window and Overlay Viewer. 
• Updated Ultraleap Runtime to version 6.1.0.1. 
• Somnium VR1 Tool UI changes: 
  • Added custom Fan Speed options (Headset – Power page). 
  • Updated text and UI on some Setup Wizard pages to be more user-friendly. 
  • Added new functionality for hardware buttons (Eye Tracking toggle, separate Simple and Advanced Eye Calibration, separate action for Passthrough and Masked Mixed Reality). 
  • Added separate option for changing top and bottom vertical FOV (Headset – Advanced page). 
  • Added total vertical and horizontal FOV values (Headset – Advanced page). 
  • Added new option to enable detailed advanced logs (Software – Drivers page). 

• Known issues:
  • 120 Hz might cause image artifacts on some PC setups, so this mode is still considered experimental. 
  • VR Controllers are not supported in Somnium OpenXR Runtime. 
  • Spacewarp functionality is currently experimental and may not work correctly on all PC/software setups. 
  • MSFS 2024 – Switching between desktop and VR mode repeatedly can cause drop in performance/FPS. If this issue occurs, we recommend restarting MSFS 2024. 

• Notes:
  • This version was also released in Standalone edition as version 1.1.0.122.

1.0.4.109 – Somnium SDK Beta5

August 12th, 2025

• Added overlays to SteamVR driver (Mixed Reality, Virtual Desktop, Eye Tracking).
• Added simple Eye Tracking calibration.
• Fixed Virtual Desktop default position.
• Re-enabled foveated rendering status information.
• Added spacewarp functionality (experimental).
• Added tracking origin offsets.
• Added new option to enable detailed advanced logs.
• Added support for dynamic foveated rendering in MSFS 2024.
• Fixed OpenXR compatibility with Le Mans Ultimate and MSFS 2020.
• Improved mixed reality behavior and added new compensation options for mesh masking.
• Eye tracking improvements.
• Other additional fixes and improvements.

• Known issues:
  • 120 Hz might cause image artifacts on some PC setups.
  • VR Controllers are not supported in native OpenXR.
  • Spacewarp functionality is currently experimental and may not work correctly on all PC/software setups.
  • When SteamVR Driver is used VR View functionality can’t be enabled from Somnium VR1 Tool (use SteamVR VR View instead).

1.0.3.98 – Somnium SDK Beta4

June 6th, 2025

• Eye-tracking improved algorithms (better calibration, more precise tracking).
• Added eye tracking trail/heatmap visualization and option to disable/enable eye tracking after calibration.
• Special eye-tracking calibration mode for VROptician lenses (to make calibration with lenses easier).
  • To use this mode enable the Lens Inserts option on the Settings – Headset – Eyes page before calibrating the eye tracking.
• RTX 5090 compatibility fixes.
• Mixed Reality improvements (image quality and usability).
• Motion Cancellation support (tracker-based).
• OpenKneeBoard compatibility support.
• Option to set FOV to lower values (60° in both vertical and horizontal FOV), and option to set render resolution up to 200%.
• Added total vertical and horizontal FOV values to Settings – Headset – Advanced page.
• Info about running application name is now available in Connected Device section.
• SteamVR adjusted warping (higher resolution warping mesh).
• Fix for checking correct SteamVR Somnium driver status and ability to enable/disable it from Somnium VR1 Tool.
• Other smaller fixes and improvements.

• Known issues:
  • 120 Hz might cause image artifacts on some PC setups.
  • Enabling mixed reality or virtual desktop overlays can cause small image stuttering on some PC setups.
  • Simple eye tracking calibration and Measure IPD functionality is currently not available.
  • Virtual Desktop doesn’t automatically reset position after it is enabled (use manual Reset from Somnium VR1 Tool instead).
  • Info about foveated rendering state is not available in Somnium VR1 Tool (foveated rendering status in Connected Device section will always show a grey dot even if foveated rendering is active).
  • VR Controllers are not supported in native OpenXR.
  • Spacewarp functionality is not yet available.
  • Overlays in SteamVR are not available, and most of the Somnium VR1 Tool options are currently not working with SteamVR driver.
  • Tracking origin offsets are not available.

1.0.3.95 – Somnium SDK Beta3 hotfix

May 2nd, 2025

• Fixed process freeze issue in DCS.
• Fixed iRacing crash when mixed reality cameras are connected.
• Fixed application crash when enabling mixed reality with Nvidia sharpening.

• Known issues:
  • 120 Hz might cause image artifacts on some PC setups.
  • Only advanced eye calibration is currently available, and it is not possible to manually enable/disable eye tracking (eye tracking is started automatically after a successful calibration).
  • VR Controllers are not supported in native OpenXR.
  • Motion cancellation is not yet available.
  • Spacewarp functionality is not yet available.
  • SteamVR driver is included in this beta, but only basic rendering is available, so we do not recommend testing SteamVR with this version.

1.0.3.93 – Somnium SDK Beta3

April 23rd, 2025

• iRacing OpenXR compatibility fix.
• Mixed Reality color & image improvements.
• Improved image warping.
• Eye tracking functionality added (only advanced calibration is available for now).
• Foveated rendering functionality added (both static + dynamic). Tested in DCS (requires enabling Quad Views option in DCS VR settings) and Unreal Engine.
• Buttons functionality added. Additional new button actions are available (separate action for passthrough and masked mixed reality, separate action for eye tracking calibration).
• Stability & performance improvements.
• Other bug fixes & improvements.

• Known issues:
  • 120 Hz might cause image artifacts on some PC setups.
  • Only advanced eye calibration is currently available, and it is not possible to manually enable/disable eye tracking (eye tracking is started automatically after a successful calibration).
  • VR Controllers are not supported in native OpenXR.
  • Motion cancellation is not yet available.
  • iRacing doesn’t load when MR USB cables are connected.
  • Spacewarp functionality is not yet available.
  • SteamVR driver is included in this beta, but only basic rendering is available, so we do not recommend testing SteamVR with this version.

1.0.3.89 – Somnium SDK Beta2

March 8th, 2025

• Added Mixed Reality capabilities
• Added VR upscaling algorithms
• Minor bug fixes and improvements

• Known issues:
  • OpenXR runtime is not compatible with iRacing.
  • Eye tracking and foveated rendering functionality is not yet available.
  • Motion cancellation is not yet available.
  • Spacewarp functionality is not yet available.
  • SteamVR driver is included in this beta, but only basic rendering is available, so we do not recommend testing SteamVR with this version.

1.0.3.83 – Somnium SDK Beta1

February 19th, 2025

• Added support for multiple display frequencies (72Hz, 90Hz, 120Hz).
• Better performance with native OpenXR runtime (approximately 30-40% increase when compared to previous version).
• Potential audio bug fix (robo voice).
• Full compatibility with Unreal Engine 5.2 and newer.

• Known issues:
  • This beta version is designed to test only features mentioned above using native OpenXR runtime and it does not support additional functionality such as: foveated rendering, upscaling, spacewarp, overlays, VD, buttons, MR etc.
  • SteamVR driver is included in this beta, but only basic rendering is available, so we do not recommend testing SteamVR with this version.

1.0.3.43

December 5th, 2024

• Additional fix for flashing black stripes while using SteamVR driver.
• Fixed tracking initialization issues in OpenXR applications.
• Added option to disable spacewarp functionality (Rendering page).
• Added color enhancer option for mixed reality (MR Exposure page).
• Adjusted default mixed reality exposure values.
• Fix for OpenXR DirectX12 compatibility issues.

• Known issues:
  • Somnium OpenXR Runtime 4.8.2 is not compatible with Unreal Engine 5.2 and newer.
    • For now we recommend using either SteamVR plugin or SteamVR OpenXR runtime with those versions of Unreal Engine.
  • Mixed reality image is not shown when Blending is set to 100% (Mixed Reality – General page).

• Notes:
  • This version was also later released in Standalone edition as version 1.0.3.96.

1.0.2.41

November 14th, 2024

• Partial fix for flashing black stripes while using SteamVR driver (depends on specific PC setup).
• Fixed crash in SteamVR when activating the Calibrate Head Pose function (Eyes page).
• Added measured IPD visualization to SteamVR driver.
• VR View optimization (VR View will not limit the rendering pipeline).
• Fixed Somnium VR1 Tool list in Windows Apps to only show the latest installed version.
• Other minor improvements and fixes.

1.0.1.37

November 1st, 2024

• Fixed perceived delay of the VR movement vs physical movements.
• Fixed low FOV problems to allow for the full FOV of the headset to be utilized.
• Changed default rendering resolution to 80%.
• Added option to set custom keyboard shortcut in the Buttons tab.
• Updated algorithm for mixed reality latency compensation.
• Fixed IPD values displayed in Connected Headset section and in the Eyes tab.
• Added capability to switch FOV and resolution without restarting SteamVR.
• Fixed FPS counter in Somnium VR1 Tool when using SteamVR.
• Fixed measure IPD and eye tracking functionality in SteamVR.

1.0.0.28

September 26th, 2024

• First release of Somnium VR1 Tool

This page was last modified on October 23rd, 2025 at 13:20

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