Ender 3 Pro, v. 1.1.4 with firmware 1.1.6.2

Friends, I’m new to 3D printing. I bought an Ender 3 Pro, v. 1.1.4 with firmware 1.1.6.2 (used or refurbished). What should the firmware be to update it? Thank you all.
My English isn’t very good, and neither is my 3D experience.