The LEGO Mining subtheme of City was first introduced in 2012 and then later revisited in 2018 with a total of 9 sets. The color scheme slightly changed from the 2 waves of releases were thew primary color is yellow but the secondary color changed from green to red.
2018 LEGO Sets
In 2018, The LEGO Company celebrated the 60th anniversary of the brick and introduced a number of sets to commemorate this. This year also so a number of new and revisited themes including the return of Harry Potter sets after 6 years. New themes such as Jurassic World: Fallen Kingdom, The Powerpuff Girls, Unikitty! and Solo: A Star Wars Story was added to LEGO Star Wars. We also so the discontinuation of LEGO Dimensions and Nexo Knights.