Just a brief update; the end is in sight. The index is being prepared so I will have the tedious task of trying to check it and fix it up. The copyright date has been changed from 2021 to 2022, but the Canadian Amazon website says that December 16 will be the release date. I've been told nothing officially yet by the editors at Bloomsbury.
While many of the anti-text parts of the chapters have been substantially rewritten, probably the major change is the scrapping of the old Postscript on the financial crisis (which seems a long time ago now). It has been replaced with a new Postscript on 'A case study of climate change and the textbooks'.