Serialised fiction and internal 'canon'

Is it cheating to go back and change earlier chapters?

I’ve had one rule while writing my three serialised novels, which can be found over on Wattpad: once a chapter was written, it was ‘official’ and could not be altered. This meant that if I accidentally blundered into a plot hole or narrative dead end, or had a character that turned out to be superfluous, I had to roll with it and find a solution within …