Again a new firmware version for the EOS R5 and R6 is available. Version 1.5.1 can be downloaded from now on. This time it is only a bug fix, new features are not included:
Specifically, a bug that has been reported frequently in the forums has been fixed, where the cameras would crash in rare cases when the “AF-ON” button was pressed.
PS: A new firmware version is already available, the V 1.5.2 (see here)