I haven’t studied the Quran, nor do I care to, but my understanding is the older versions are different than the newer ones. If true, somebody has edited something in it.
The only edit to the document came around 1,000 years ago. Some guy made the decision to break the whole thing up into one unclear passage document, where the longer of sentences are at the front, and the shorter of sentences are at the rear. No rhyme or reason, other than it takes some religious instructor to take each theme and set it to the right moment of Muhammad’s life. It’d be like a transmission repair manual....taken apart with long directions at front and short at the rear...you’d never be able to clearly define the right steps unless you had some certified transmission guy standing there to take you through each step.
And I should note...sixty-percent of the Quran has nothing to do with Islam members...it’s directions on how to handle non-Islam folks. That should make you kinda wonder what the document’s value would be if someone just edited out everything that was about non-Muslims.