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#                                    PROTON HFR Release Notes                                     #
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Latest Release:

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.

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Previous Releases:

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.