Update: Canon USA has removed the link and firmware notes for version 1.4.0 for the Canon EOS R. The release date looks to be September 26, 2019.
Canon has released new firmware for the Canon EOS R. This is a major firmware update with a lot of autofocus updates and bug fixes.
Firmware Version 1.4.0 incorporates the following enhancement:
Enhances eye detection Auto Focus (AF) for improved face and eye recognition at greater distances.
Improved Auto Focus (AF) performance helps the camera to focus on and track smaller subjects.
Reduces lag time between the actual Auto Focus (AF) and the AF frame display for images in the viewfinder or on the LCD.
Fixes a phenomenon in which the AF frame size cannot be changed in the Servo AF setting.
Fixes PTP communication vulnerability...