This article focuses on the systematization of new rules and partial corrections of the rules made in the «Ukrainian orthography» of 2019, they are valuated in terms of expediency and need to solve urgent spelling problems of Ukrainian terminology. The author indicates orthographic norms that have given consistency to the Ukrainian orthography and eliminated long-standing contradictions. The article shows the ignored or illogically interpreted spelling problems, primarily related to the transfer of terms of foreign origin. Special attention was paid to numerous variant additions to the spelling of case endings of nouns, to the transfer of sounds, sound combinations and letter combinations in common and proper foreign names, the possible ways of eliminating variance are emphasized. The author analyzes the main changes to the use of punctuation marks (quotation marks, parentheses, commas, periods, slashes, etc.), which should be taken into account in scientific texts. The paper suggests main tasks for Ukrainian terminologists, which arose in connection with the changes made to the new edition of the “Ukrainian orthography”