Canon is throwing out new firmware for the 5D4 and the 6D2. From Canon’s site:

Firmware Version 1.3.0 incorporates the following enhancements and fix:

1. Enables NFC connection with smartphones running Android 10 operating system. 
*For Android running v6.0 or later, use Camera Connect v2.7.10 or later.
*For Android running v5.0 or older, use a connection method other than NFC. 

2. Enables support for the .CR2 image file format on

3. Fixes a phenomenon in which some camera operations may not be possible or an error may occur after an insufficient flash output is produced when shooting with the flash.