For one reason or another, this has been the week of all weeks for those anxiously awaiting firmware updates. While some are rather mild updates to fix various bugs (which is still important, granted), other updates like the one for Leica's T camera boost things like autofocus speed twofold. Fresh updates! Come and get 'em!
The Leica T's firmware update, as already mentioned, is the most promising of the bunch in what it offers: "The new firmware version 1.4 enormously increases the speed of the Leica T and improves its entire performance profile." Live view comes on in a fraction of a second, buttons are three times more responsive (i.e., in review mode), and autofocus speed is twice as fast. Additionally, version 1.4 adds numerous lens profiles.
Nikon's firmware version C 1.10 (from 1.02) adds external recording through certain Atomos HDMI-connected devices for the D810. There are some specific settings to look out for when connecting via HDMI for external recording, but you can read about that in addition to the laundry list of glitches that are fixed by firmware update C 1.10 on Nikon's website. Nikon also released firmware for the Coolpix L32 and L30 cameras.
Sony RX100 Mark IV and RX10 Mark II
These compact Sony cameras are updated with a fix for a focus shift condition with HFR (High Frame Rate) recording. By clicking on these links, you can get the RX100 Mark IV and RX10 Mark II installation files for your operating system.
Fuji XF-Mount Cameras
A good number of Fuji's X-series cameras received updates with support for the XF 35mm f/2 R WR lens, the XF 1.4x TC WR teleconverter, and/or Windows 10.
Everyone but….. Canon.
Olympus almost never gets mentioned but two of their top cameras are getting major updates next month.
The flagship E-M1, and the E-M5ii.