The ApA publishes the Diagnostic and Statistical Manual of Mental Disorders (DSM), which has undergone quite a bit of change over the years.
DSM (1952)
DSM-III (1980)
DSM-III-R (not available)
DSM-IV (1994)
DSM-IV-TR (2000)
DSM-5 (2013)
DSM-5-TR (2020)