AKB48 Team 8 Mie Prefecture representative Noda Hinano announced graduation via her SHOWROOM show tonight (6 January 2019). According to Team 8 official web site, Noda Hinano decides graduating from group because of her study and health condition.
Noda Hinano joined AKB48 as a Team 8 member in June 2016, she also has a concurrent position in AKB48's Team 4 since December 2017 (Team Shuffle at AKB48 12th Anniversary).
Reference: Team 8 official site