11-16-2021 06:31 AM
According to NewsShooter; improved tracking and other enhancements. "Available to download from 2nd December 2021".
https://www.newsshooter.com/2021/11/16/canon-eos-r5-eos-r6-eos-1d-x-mark-iii-firmware-updates/
03/26/2024: New firmware updates are available.
EOS 1DX Mark III - Version 1.9.0
12/05/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.3.0
07/31/2023: New firmware updates are available.
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