USCIS has announcedthat for October 2016 it will allow I-485 filings for those immigrant visaapplicants who qualify under the more favorable Date of Filing chart. 
Dates of Filing Chart – October 2016

Employment-
based
All Chargeability 
Areas Except
Those Listed
CHINA-
mainland 
born
INDIA
PHILIPPINES 
1st
C
C
C
C
2nd
C
01MAR13
22APR09 
C
3rd
C
01MAY14
01JUL05
01SEP13
If you have apriority date earlier than the dates listed on the above table, and you arelawfully in the United States, you can file your I-485 from October 1-31,2016.  Please keep in mind that the USCISwill not approve your immigrant visa application unless your priority date isearlier than the standard Final Action chart.
Final Action Chart– October 2016

Employment
based
All Charge-
ability 
Areas Except
Those Listed
CHINA-
mainland 
born
INDIA
PHILIPPINES
1st
C
C
C
C
2nd
C
15FEB12
15JAN07
C
3rd
01JUN16 
22JAN13
01MAR05
01DEC10