I don't have the exact title of the latest Adam Dalgliesh novel off the top of my head. But you could search on major online bookstores or ask at your local library for the latest information.
Another great one is 'A Taste for Death'. This novel delves deep into the psyche of the characters. Dalgliesh has to deal with a complex murder case set against a backdrop of religious and social tensions. The plot is intricate and keeps the reader guessing until the end.
Some of the highly regarded Adam Dalgliesh novels include 'Cover Her Face'. It was the first in the series and introduced readers to the complex character of Dalgliesh.