What we can see from the photo is the usual facelift fodder of updated grille with new three - pointed star, new headlights and tweaks to the front bumper. (carsuk.net)
In 1979, a minor facelift updated the grille design; round headlights were replaced by rectangular units. (en.wikipedia.org)
For 2018, High Country and Z71 versions get updated grille styling. (cars.com)