Cats are creatures of habit. They will do something or behave a certain way forever, eternally the same, maintaining an unalterable routine. Until they change.
Josie has changed. She has lost weight, a pound and a half over two years. I attribute this to a better diet. When she went to the hospital for her dental procedure, a blood-panel was perform on her and she was found to be in good health, so I think she is simply getting in better shape. She can now clean her bum by herself most of the time - she was too round, previously - which suggests that she is at the weight that is natural for her body: literally, a better shape.
She has become more affectionate, always wanting pets, and purring more loudly than ever before. I like that, though she is a labour-intensive animal.
But the most noticeable new characteristic is that she does not mind being held for a while. My Chubs formerly hated being held and would squirm until she was put down. These days, I can pick her up and hold her for several minutes before she requests to be replaced on the floor. I stroke her tiny head and speak to her; she purrs and is quite tolerant of my grasp. This is a great change in her behaviour.
Cats’ personalities do change, over time. Some change more than others. Some, of course, never change. This is like humans. We all know people whose character is not the same as it once was, and we know those who are just the same as always. All my cats have altered over the years of our acquaintance, and I am happy that they have all done so for the better. Like Josie.