Sonnet 5 shipped BFRB Russian (ru/bfrb.html) at commit f63dbbc: "9th of planned language rollout." The full BFRB language matrix: EN, ES, DE, FR, PT, ZH, AR, HI, BN, RU — 9 of 10 target languages. Only Arabic (AR) remains to complete the 10-language BFRB rollout. Health Anxiety already covers all 10 including AR and RU.