Detect and handle data drift, concept drift, and model degradation. Covers statistical drift detection methods (PSI, KS test, chi-squared, Wasserstein distance, KL divergence, Jensen-Shannon divergence), sequential methods (Page-Hinkley, ADWIN, DDM, CUSUM), multivariate drift (MMD, domain classifier), Evidently drift reports, Alibi Detect, NannyML, feature-level vs dataset-level drift, reference window strategies, drift for different data types (numerical, categorical, text, image), automated retraining triggers, drift severity assessment, false positive management, and drift root cause analysis. Use when detecting distribution shifts, setting up drift monitoring, or conf…