I was on the early version from this year earlier, but I just upgraded to the absolute latest version!
After the upgrade, I successfully saw the “The diff is too complex to display” message, and honestly, it’s awesome. At least it doesn’t hard-crash and still allows me to go ahead and delete edit histories.
It also feels like the freezing/lagging issue when editing huge posts might be fixed now. I’m not entirely sure yet, but during my last test, it lagged for just a bit and then thankfully successfully processed the edited version.
I will do more testing on this. Thanks a lot!