No Traditional Latin Mass were supressed in the Diocese of Biloxi, according to the source "Official Diocese Website" the last update on this report was on August 16, 2021. The bishop at the time of this report was bishop "Louis F. Kihneman III"
Source: Official Diocese Website
3. Priests formerly entrusted with these celebrations and with the pastoral care of the faithful who attend them continue to be so entrusted (Art. 3, S4). 4. Priests who already celebrate Mass according to the Missale Romanum of 1962 in the Diocese of Biloxi continue to enjoy this faculty upon request (Art. 5).