The changes happened sometime ago.
Here is a link to the unit list
http://fdnyems.com/EMS%20Unit%20Location%20Charts.pdf
Pretty Much they took one ALS haztac in each boro and made them a Rescue Medic/ALS Haztac. The Haztac Only Medic units are still Zebra units.
They were talking about adding some more units but I have not scene that happen yet.
Next big change will be the removal of the Hospital 21 units (St Vinnys) BLS units 06C, 06K, 07A and ALS units 02V, 07W
Vinnys picked up some units from FDNY sometime back and then added another with Hosp 19 closing.
Word is FDNY is going to take all 5 units back and not give them away.