The technical briefing given last week was on the notice of ways and means motions. The items in part 1 of the bill—the income tax part—are all the same. What's in the BIA is the same as what was in the notice of ways and means motion, so there's nothing additional. My understanding is that it would be the same for the other parts, though I can only speak for certain with respect to part 1.
On May 2nd, 2022. See this statement in context.