latest sockets (from older to newer):
sandy bridge - lga 1155 (h61, h67, p67, z68)
sandy bridge-e - lga 2011 (x79)
ivy bridge - lga 1155 (same socket as sb. with the help of a bios update from motherboard manufacturer, ivy bridge cpus can be used in most h61, h67, p67 and z68 motherboards.)
latest motherboard chipsets (desktop) - h77, z77, z75 (ivy bridge).
so the latest mobo would have a ivy bridge - lga 1155 with Z75 chipset?
h77, z75, z77 launched around the same time, so all 3 would be the latest chipsets. latest motherboards are diffferent. a 'latest' motherboard can have any of the chipset or any other chipset or any socket depending on vendor.