mettre à niveau

French

(transitive) to bring up to standard (a skill, subject, one's knowledge, an unemployed person, etc.)
(transitive, also computing) to upgrade, to update; to bring up to standard, to retrofit (equipment, infrastructure, software, etc.)
(reflexive) to bring oneself up to speed on, to bring oneself up to date on, to improve one's knowledge of [with en ‘a skill or subject’]
se mettre à niveau en néerlandais ― (please add an English translation of this usage example)