Two big things from Jeremy Corbyn's speech.
First, Brexit will set us free to pursue an interventionist economic policy, and to refuse to privatise public services; everyone has always known that those were his real views.
And secondly, he has thrown down quite a gauntlet to Theresa May next week, to suspend arms sales to Saudi Arabia.
That got a standing ovation in the middle of a speech, something that is normally quite rare. Although it was not rare on this occasion.