Fuji has released a Fuji X-T3 firmware update. Version 3.20 has these features:
Enhanced autofocus.
Improving the tracking performance of the eye AF frame, making it easier to attain accurate autofocus on the eyes.
Improving face-detection performance when there are faces of different sizes within the same frame, making it easier to attain accurate autofocus.
Improving autofocus capability on a foreground subject even when there is a mixture of foreground and background subjects within a AF frame, causing the foreground subject to go out of focus, e.g. when shooting flowers against a busy background.
Capability to save up to 9,999 pictures in each folder.
Until now, the number of pictures that can be saved in a folder on an SD card was limited to 999. This update will raise the limit by ten times to 9,999 pictures.
The phenomena below during a movie shooting are fixed.
Focus hunting at the minimum aperture.
A black line can sometimes appear on the bottom of the center.
Fix of minor bugs.
» Official Fujifilm Download Site