
Sony has released the latest firmware versions for three of its Alpha cameras. Firmware version 1.13 for the A7R IV A, 4.04 for the A7 III, and 2.03 for the A7C improve "operational stability” in all three of the Alpha models.
That’s all the information Sony has provided on these latest firmware versions, but a general stability update usually solves issues related to power, compatibility or lagging/freeing, making them minor but important updates.