So the added fixes/functionality in 1.3.1 vs 1.3.0 are:
– Support for RAW movies shot with Canon Log3 and RAW (Light) will be available in Cinema RAW Development and in Digital Photo Professional version in a future update. Digital Photo Professional will also support the processing of RAW movies shot in Canon Log3 settings and the application of Viewing LUT in a future update.
– Fixes a phenomenon in which the power may become suspended when the camera is powered via USB for an extended period of time.
– Fixes a phenomenon, in which part of the settings screen is incorrectly displayed in Firmware Version 1.2.1.
– Fixes a phenomenon, in which when shooting with Canon Log 3, if the [View Assist.] setting is set to [On], the image in the viewfinder and on the LCD screen is displayed brighter than it should be.