In addition to the newly announced a6400 APS-C camera, Sony also had two new announcements in San Diego today. The first was new firmware updates for the a9, a7R III and a7 III, the first of which is expected in March of 2019. They also announced a new Imaging Edge software that will enhance mobile connectivity.
Sony has announced the a6400, a brand new APS-C camera. Equipped with a 24.2 megapixel sensor, and a brand new BIONZ X processor, the latest addition to the lineup is the first APS-C camera to inherit many of the autofocus technologies present and popular in their full frame lineup models such as the a9, a7R III and a7 III. This camera is capable of locking focus in as little as 0.02 seconds, with Sony calling it the fastest APS-C camera in the world (as of writing).
With the previous update, v2.0 a couple months ago, there were occasional issues with saving data on both camera models, as well as an issue where the cameras would sometimes not recognize third party memory cards. Sony pulled the update, but has now released the replacement, v2.10, which addresses these issues and removes any concern.
All features of the previous (v2.0) version are updated, including improved optical stabilization, support for the 400mm f2.8 and 24mm f1.4 GM lenses, and support for use with the LA-EA3 adapter, including the support of all focus areas.
Firmware links are below.