12.9-inch iPad Pro could have compatibility issues with previous-generation Magic Keyboards
Now that the dust has settled around the much-hyped M1-powered iPad, it's time to take a look at the accessory ecosystem around it. People wanting to use the new M1 iPad Pro 12.9-inch with older hardware will be in for a disappointment. And no, this isn't a deliberate move by Apple to 'convince' its users to buy newer hardware. The laws of physics appear to be the culprit this time around. Whether or not the same problem afflicts its 11-inch sibling remains to be seen.
One (unintended) consequence of fitting a laptop grade chip in on the new 12.9-inch iPad Pro turned out to be increased thickness, which is quite contrary to Apple's life mission of making everything thinner. The new iPad is 0.5mm thicker than its predecessor. Igen.fr notes that this is the primary reason for the new 12.9-inch iPad Pro, as it presses against the keyboard/trackpad too tight.
While this shouldn't affect the keyboard's actual functionality, lugging it around could be a tad risky, especially inside backpacks, handbags and other apparels that have the potential to squeeze the Magic Keyboard and iPad's screen too tight. Then again, you should be fine if you use your iPad as a desktop replacement.