For ACS 5-year estimates that straddle 2010 (2007-2011 to 2009-2014), or all census tract estimates from the 2010 Census Tract boundaries? My guess would be that this would be the case starting with the 2006-2010 ACS estimates, but I just wanted to confirm.
The changes in New York State are all in Madison and Oneida counties (except combining some water tracts off Staten Island), AND they all happened in 2011, so I don't think you have to worry about changes…
Yes, that's correct. The 2006-10 ACS used the 2010 tract boundaries and then so did each following ACS product, even up to the most currently available 2015-19.