Final Action Dates and Dates for Filing published for December 2017 (fiscal year 2018), with the change from November 2017. Official source: travel.state.gov.
What changed
F1 (Philippines) retrogressed 730 days, from 1 Jan 2007 to 1 Jan 2005.
F2B (Philippines) retrogressed 184 days, from 1 Jan 2007 to 1 Jul 2006.
F4 (Philippines) advanced 54 days, from 8 Jun 1994 to 1 Aug 1994.
F2A (Rest of World, China, India, Philippines) advanced 37 days, from 15 Nov 2015 to 22 Dec 2015.
EB-3 (China) advanced 35 days, from 1 Feb 2014 to 8 Mar 2014.
F4 (India) advanced 31 days, from 22 Oct 2003 to 22 Nov 2003.
EB-2 (India) advanced 24 days, from 8 Oct 2008 to 1 Nov 2008.
F3 (Rest of World, China, India) advanced 24 days, from 15 Aug 2005 to 8 Sep 2005.
F4 (Rest of World, China) advanced 17 days, from 22 May 2004 to 8 Jun 2004.
EB-2 (China) advanced 16 days, from 15 Jun 2013 to 1 Jul 2013.
F2A (Mexico) advanced 14 days, from 1 Nov 2015 to 15 Nov 2015.
F3 (Mexico) advanced 14 days, from 8 May 1995 to 22 May 1995.
F1 (Rest of World, China, India) advanced 10 days, from 22 Jan 2011 to 1 Feb 2011.
F2B (Rest of World, China, India) advanced 7 days, from 15 Nov 2010 to 22 Nov 2010.
F3 (Philippines) advanced 7 days, from 1 Mar 1995 to 8 Mar 1995.
Dates are exactly as published; C = Current, U = Unavailable. Some categories (EB-5 set-asides, EB-4 religious workers) are in the dataset. Priority dates earlier than the cut-off may be processed; see the FAQ.