It started in 9/11/2019 before the pandemic, the new M9 fleet for the LIRR. It's a heavy EMU (electric multiple unit), 85 foot, married set train that replaces M3 by Budd. With over 300 or 400 services with extension to/from Port Washington. Check out: https://wikipedia.org/wiki/M9_(railcar)
LIRR is set in 2018. Grade separations between Floral Park and Hicksville were also beginning to be completed by that time.
