As promised, Canon has released AF (autofocus) firmware updates for the EOS R5 and EOS R6 cameras.
Firmware version 1.5.2 for the EOS R5 incorporates the following enhancements:
1. Optimises autofocus accuracy when Extender RF 1.4x or Extender RF 2x is attached to the RF 800mm f5.6L IS USM and RF 1200mm f8L IS USM lenses.
2. Enhances the stability of Eye Detection.
3. Enhances autofocus tracking when shooting moving subjects.
Firmware version 1.5.2 for the EOS R6 incorporates the following enhancements:
1. Enhances the stability of Eye Detection.
2. Enhances autofocus tracking when shooting moving subjects.
For more information about how to update your firmware, check out this article.