On November 22, 2017, the Ontario Government passed Bill 148, the Fair Workplaces, Better Jobs Act, 2017, S.O. 2017 C.22. The Bill received Royal Assent on November 27, 2017.
This post focuses primarily on the Employment Standards Act, 2000 and the implications to Ontario employment law, rather than labour law.
UPDATE: Nearly one year later to the day, November 21, 2018, the Ontario Government, now under a Conservative government, passed Bill 47, the Making Ontario Open for Business Act, 2018, S.O. 2018, C.14. A major effect of Bill 47 was to undo much, but not all of what had been introduced by Bill 148. For a summary of the changes made by Bill 47, see my post Bill 47 - The Making Ontario Open for Business Act, 2018.