Dramatic changes
Move with the times
To turn upside-down
Fundamental changes
Sweeping changes
Radical change
It would make a change
Imperceptible changes
A change that will be pleasantly different from one's usual routine
To change your ideas, opinions, or way or living or working to make them modern
Very sudden and noticeable change
Your life changes completely and usually negatively
Changes that affect many people and things
Basic changes and more important than anything else
It changes so slowly that you hardly notice it
A change that is extreme, especially as regards change from accepted or traditional forms