Fujifilm released firmware 1.03 for the Fujifilm X-Pro3. You can download a copy here and read what the update does below
The firmware update Ver.1.03 from Ver.1.01 and Ver.1.02 incorporates the following issues:
Fujifilm X-Pro News, Rumors, and Collaboration
Fujifilm X-Pro Owners Group
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Fujifilm X-Pro3 (Pick Your Trim): B&H Photo / Amazon / Adorama