In May this year, the Ontario Ministry of Transportation announced the availability of an updated Ontario Traffic Manual Book 7 – Temporary Conditions. You can download a copy, however the print versions are currently on backorder but will be available soon.
You can view the Release as well as a summary of the key changes here. https://aors.on.ca/wp-content/uploads/Stakeholder-Notice-Letter-OTM-Book-7-April-2022-Release-May-2022-002-signed.pdf
