I wonder what they’re looking to update with this firmware. It is very unfortunate that the R3, R5/R6, and R7 all use totally different autofocus systems now…and no, the R7 does not have the R3 AF system, it has a bastardized version with deliberately less intuitive controls. Give everything the R3 AF system. It’s damn near perfect and I hate using any other camera because of it!
Hopefully we find the R5 gets a nice update to disable the movie record limit. I doubt there is anything they can do now to further improve overheating performance, but it would be cool to see the gauge system from the R7 - if that’s even possible.
Actually they could: The R7 has a badge behind the screen warning about higher temperatures, the R5 does not. The R5 could get a software toggle where you'd have to read and accept the extended temperature range on the backside and therefore use the camera up-to higher temperatures internally.
But what I'm really hoping for are waveform and/or histogram during recording (from the R5 C), M-fn not being the only button to toggle between video and photo AND cycling through the custom modes, depth composition for focus bracketing (from the R7), AF-linked spot metering (!!!!!) and maybe also a few AF improvements taken from the R3/R7.
In my opinion the R5 (and R3 for that matter) have a ton of possibilities to get better in software, the hardware is very capable but the software restricts them unnecessarily, but there may be quite a few of updates lying ahead, where they could reveal more of the beast that resides inside the R5 (and R3). (R5 II in ~2024 -> update 3/year -> at least 4 updates to go)