Well this is exciting, just got my Radiomaster Boxer with ELRS, and a new Rx.
Now then, do I HAVE to flash it, and the new rx for new firmware updates, or is it most likely going to be fine if I don’t.
The whole thing seems über complicated!
James I moved your post to the fpv section as it’s more likely be seen by one of the goggled G̶i̶m̶p̶ geeks that know what your talkin about
Que the G̶i̶m̶p̶ Geek 
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I nornally update to the latest version esp if you 9nly.got one Rx and tx. As long as the Rx and tx on the same major version i.e. both 2.x or 3.x should work fine.
Looks like a great radio that one. Good choice.
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Thanks dude,
Really looking forward to using it. My Flysky fsi6x range was fine with fixed wing and big rxs but utterly hopeless with quads.
Never understood why…