The new firmware incorporates the following enhancement:
- Support for the “Dual Sensing IS” function with the EOS M50 has been added.
This firmware update is for lenses equipped with older firmware versions. If the lens firmware is already the latest version (EF-M15-45mm f/3.5-6.3 IS STM: Version 3.0.1, EF-M55-200mm f/4.5-6.3 IS STM: Version 2.0.0, EF-M18-150mm f/3.5-6.3 IS STM: Version 2.0.1), it is not necessary to update the firmware.
The version of the lens firmware can be checked on the camera menu.
See Camera User Guide for further instructions on how to check the lens firmware version.