The A9 II saw the addition of some minor functions for manipulating file numbers. The update also fixed a problem where function menu items were not registered correctly. Additional unnamed bugs were addressed.
FTP transfer workflow was improved on the A7 III, allowing transfers of classes of photos, cush as those marked as protected. It also allows for auto uploading while shooting, and the determination of whether JPGs or RAWs or both should be uploaded.
There were some additional minor improvements to file transfers and other, unnamed bug fixes.