Changes in version 1.2-0 (2026-06-07) o New SPJDEoptim() adds a simple parallel version of JDEoptim(). Changes in version 1.1-4 (2025-07-27) o In JDEoptim(), the default value of maxiter is increased tenfold. Changes in version 1.1-0 (2023-07-12) o New NCDEoptim() adds a bespoke implementation of the NCDE algorithm for multimodal optimization. Changes in version 1.0-6 (2016-07-06) o In JDEoptim(), FUN renamed to compare_to. Changes in version 1.0-5 (2016-07-01) o In JDEoptim(), tau1, tau2 and tau3 renamed to tau_F, tau_CR and tau_pF, respectively. Changes in version 1.0-0 (2014-01-27) o First release of DEoptimR: implementation of a bespoke variant of the jDE algorithm for single-objective optimization. o Constraint handling based on biasing feasible over unfeasible solutions by a parameter-less variant of the epsilon-constrained method.