None of the detective series I read do that. I'm thinking of Wallander, Inspector Banks, Inspector Linley, P d James, John Harvey, Peter James and many others.
In most of them, it probably helps to see how the characters and their relationships develop over time although it's not absolutely essential. But they certainly haven't given away the endings of their other books. In The Linley detective series Elizabeth George does sometimes refer to incidents in her previous novels such as the fact that Inspector Linley's wife was shot dead by an unknown murderer but it doesn't affect the plot.