Sony Alpha 7 IV Firmware Update Brings Lossless RAW Support and Improved Eye AF - Exibart Street

The update's most noticeable feature separates lossless compressed RAW capture into three size options: small, medium, and large.

Sony Announces the Alpha 7R V - Exibart Street

A7IV Eye AF Firmware Update

Sony a7 IV gets new Lossless Compressed Raw sizes, improved Eye AF

Sony A7 IV Firmware Update Tutorial - Step by Step - V1.01 to V1

Sony A7 IV Firmware Update v2.0 adds support for Creators App

A7IV Eye AF Firmware Update

ILCE-7M4 System Software (Firmware) Update Ver. 2.01

Finally: Sony released new A7IV firmware update 2.0 – sonyalpharumors

Sony a7 III Firmware Update 4.00 Adds FTP Transfer

Sony Alpha 7 IV Firmware Update Brings Lossless RAW Support