Each section of a chapter from the second on now ends with two to four flashcards about that section, and the Recap page holds cards about the chapter as a whole. Press a card to turn it over, then choose "Got it" or "Still learning". Your ratings stay in this browser, and a "Known" tag and count show your progress.
The cards are written from the lesson you read. When a chapter is rewritten, its flashcards are written again from the new text.
The quick check on the Recap page is now the chapter's quiz alone, on every plan. Flashcards are part of Pro; on Starter each deck spot shows the upgrade option.