Changed Census Tracts post-2011 not showing up?

[frumh002]

Hey there,

I noticed some discrepancies when building block groups from Census blocks for the whole US. Some areas in NY wouldn't aggregate up and I came across this link that highlights some changes to census tracts after 2011. These changes are reflected in tracts and block groups but not at the block level.

Just some code to highlight this:

ny_2010_b <- tigris::blocks(year = 2010, state = "NY", county = 53)
ny_2011_b <- tigris::blocks(year = 2011, state = "NY", county = 53)
ny_2012_b <- tigris::blocks(year = 2012, state = "NY", county = 53)

ny_2010_bg <- tigris::block_groups(year = 2010, state = "NY", county = 53)
ny_2011_bg <- tigris::block_groups(year = 2011, state = "NY", county = 53)
ny_2012_bg <- tigris::block_groups(year = 2012, state = "NY", county = 53)

After 2010, there should be no census blocks that have census tracts starting with 94...but the blocks do and the block groups don't. Wondering if I'm doing something wrong or why these changes aren't in tigris?

Thanks!