Cool, mine came with 1.07 loaded form the factory....
I wish there was better remote trigger / linked shooting.
I wish I would like to be able to have linked trigger/shooting and also Fiore the remote flashes at the same time.
It is interesting, my ST-E3-RT does fire the remote flashes when you use remote triggering. My YN-E3-RT does not.
Doesn't the Canon version have to be fired from a 600 flash though and not the main camera?
Maybe I'm setting things up wrong.
Ok there are two similar but different functions, one is Remote Shooting, the other Linked Shooting.
Remote Shooting is where you trigger the camera via a camera mounted ST, YN, or 600 from a remote 600, this works the same with both the ST and YN, APART from the YN will not fire any of the flashes, including the flash you trigger with. The Canon ST or 600 will fire all the flashes. Neither the ST nor the YN can be the handheld triggering device. With my firmware version.
Linked Shooting is where you have two, or more, cameras, each can have an ST, YN, or 600 mounted and when you press the shutter on one camera the other cameras will also fire. I haven't tested Linked Shooting with the YN.
Edit: I have now tested Linked shooting with the YN and it works exactly the same as the ST or a 600. I have not tested Linked Shooting with the flashes set to fire as the shutters are not perfectly syncronised so I see little point to the "feature".