If you want to describe a significant change in your hometown, you could say:

"There have been major changes in my hometown."

Or, if you want to be more specific about the nature of the changes:

"My hometown has undergone a transformation. There are new buildings, roads, and amenities that didn't exist before."

"The landscape of my hometown has changed dramatically. Old landmarks have been demopshed and replaced with modern developments."

"The character of my hometown has shifted significantly. It's no longer the same place it used to be."

"There has been a huge shift in the economy of my hometown. Industries have come and gone, and the population has fluctuated as a result."