I don't mean the "old school" romance writing style of the 1970s type with a bosomy cover and the word "savage" in the title. I'm referring to the fact that I find that there are some authors whose earlier books I really liked, but their more recent books do not appeal to me. Either they moved settings from historical to contemporary, they upped the suspense and dialed down the romance, they moved into a new genre, or their style somehow inexplicably changed. Many became even more successful, so they probably appealed to more readers with their changes. It's all a matter of personal reading preference.
I'm including a few of my own examples below. Has this happened to any other readers out there?
Julie Garwood  - To me, her style of heroine is better suited to historicals.
Linda Howard  - I think I diverged at the spy titles, although I do still occasionally read a new one.
Jill Marie Landis  - The recent titles are more inspirational than straight historical, which I prefer.
J.R. Ward  - The dial is now shifting closer to Urban Fantasy for the series.