On April 7, 2020, Twitch announced new guidelines for videos. These guidelines focus on attire and nudity of people on camera. Twitch states that they have designed the new guidelines to clarify its previous policy, which stated, "wear what is appropriate for being in public."
The updated rules are quite clear: no nudity on Twitch streams, absolutely no partial nudity, no genitals, no buttocks, and no full nudity. The guidelines provide further details on this policy — no outlines of genitals (covered or otherwise). Genitals must be covered, "extending from your hips to the bottom of your pelvis and buttocks" per the updated guidelines. No see-through materials, even partially see-through is acceptable under these rules.
Ladies, Twitch has clarified guidelines for you as well, stating, "For those who present as women, we ask that you cover your nipples." Twitch also coins the term "exposed underbust," which is also not allowed, and "cleavage is unrestricted as long as these coverage requirements are met."
These rules apply to avatars, filters, and art — even fan art, nude drawings, or art for the purposes of education. Twitch's guidelines extend exceptions to those who are breastfeeding, doing body art, and those whose streams are at the beach—female nipples are still a no go though.
Read the full Twitch guidelines here. In the announcement Twitch also said that the updates are far from exhaustive and "update it periodically as the community’s needs evolve." Twitch has also updated its Sexually Suggestive Content policy, which you can read here.
Streaming is a major part of gamers' media diets these days and no one wants to see anyone kicked off Twitch for lack of knowledge regarding their policies. Read 'em and follow 'em and allow your followers to continue enjoying your content. Happy streaming, everyone!