I've installed it. No issues or problems.
There were some reports that you needed to run the update a second time if your camera does not show the updated firmware version after completion. I did not have any problem - but if you have not installed recent prior versions, you might encounter the issue. These updates usually include bug fixes that are not disclosed. It's also possible that the CFExpress update is included but not disclosed - but that is less likely.
- jdroach likes this