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#                                    PROTON HFR Release Notes                                     #
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Latest Release:

Package 5 - 24-Feb-2026
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Includes:

- Software (PROTON OS)       v1.7.0
- Firmware (Video Processor) v1.4
- PROTON Updater             v1.2.9.0
- PROTON Control             v1.5.0.0

Changes:

- Improved black level measurement to improve image quality especially in low-light scenarios.
- Reference Manual: Added maximum command runtime for commands which can run longer than 100 ms.
- Added automatic gain mode switching between Standard and Low-Light mode: With the new "Auto" gain
  mode the camera will automatically select the gain mode depending on the current gain setting. It
  will use the "Standard" gain mode for low gain settings and the "Low-Light" mode for high gain
  settings. This makes the whole gain range available without manually changing modes. The threshold
  for the switch between the modes must be calibrated for each camera to make the "Auto" mode
  available. This can be done by running the 'camera gain mode auto calibrate' command. The current
  calibration state can be queried with the 'camera gain mode auto' command. For details see the
  reference manual.
- Fixed current gain or exposure not being saved when switching auto exposure mode and saving
  settings afterwards.
- Bad pixel calibration is now always done at the default video mode for more consistent results.
  After calibration is done the previously configured video mode is restored automatically.
- Improved auto white balance: The AWB algorithm now also controls the tint value to improve the
  green balance. This means that when AWB is enabled the tint can no longer be set manually (but it
  can be read). Instead the AWB tint can now be fine tuned with the new "video wb auto tint_offset"
  command.
- The field sequence for multi-phase interlaced output is now in conformity with the specification
  by EVS. This means on standard SDI receivers the field order for multi-phase output will not be
  correct. See reference manual for details.

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Previous Releases:

Package 4 - 18-Nov-2025
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Includes:

- Software (PROTON OS)       v1.6.2
- Firmware (Video Processor) v1.2
- PROTON Updater             v1.2.7.2
- PROTON Control             v1.4.4.0

Changes:

- Added a licensing mechanism which allows certain features to be only available if the matching
  license has been purchased. For now this only affects PROTON HFR for which the 12G SDI output
  (SQD or 2SI packing) is an optional purchase. To activate a license the new 'system license'
  command is used.

Package 3 - 13-Nov-2025
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Includes:

- Software (PROTON OS)       v1.6.1
- Firmware (Video Processor) v1.2
- PROTON Updater             v1.2.7.2
- PROTON Control             v1.4.3.1

Changes:

- Clock tuning with the 'system sdi clock_tune' command has been improved so that it now always
  runs in constant time (instead of taking longer for bigger offsets). As a downside this requires
  a pipeline restart when the clock tuning is changed. This change does reset a previously
  configured clock tuning to 0 so if the camera was calibrated make sure to backup the previous
  value and set it again after the update.
- Fixed documentation regarding auto exposure speed, the range is [0, 100] not [1, 100].
- Fixed auto exposure showing visible jumps in image brightness in some situations.
- Fixed color bar test pattern for interlaced video output.
- Fixed left and right audio channels being swapped in some cases.
- Improved black gamma documentation, reference manual now has a diagram explaining the effect.

Package 2 - 24-Sep-2025
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Includes:

- Software (PROTON OS)       v1.5.2
- Firmware (Video Processor) v1.1
- PROTON Updater             v1.2.7.1
- PROTON Control             v1.4.2.0

Changes:

- Renamed "Quad" output mode of the HFR to "SQD" (square division) in command help and
  documentation to be consistent with the standard.
- Made 12G output of the HFR optional. SQD and 2SI packing are paid features which are disabled by
  default now.

Package 1 - 19-Sep-2025
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Includes:

- Software (PROTON OS)       v1.5.1
- Firmware (Video Processor) v1.1
- PROTON Updater             v1.2.7.1
- PROTON Control             v1.4.2.0

First non-beta release. Compared to the v1.5.1_test version this releases comes with the following
fixes and improvements:

- Fixed manual and auto-exposure control.
- Fixed image flip and rotation.
- Fixed clock configuration errors which could occur on some devices causing them to boot with no
  image output and a red blinking LED.
- Improved error detection and logging.
- Added new 'system sdi' command group which contains the 'amplitude' and 'slew_rate' commands
  which can be used to tune the SDI output signal to increase compatibility with different cable
  lengths and SDI receivers.
- Removed LSC presets for S-Mount lenses from the HFR as it uses C-Mount lenses for which there are
  no presets yet.
- Added "2SI" packing mode for the 12G output of the HFR. In this mode each phase is directly
  mapped to one of the 4 sub images of the 12G SDI signal. This allows for easier decoding without
  a frame buffer.