Seibu announced timetable revision on March 16, 2024
https://dia.seesaa.net/article/502162651.html
・Shinjyuku Line(12:00PM〜3:00PM)
Express: 5→6 services per hour
Local: 5→6 services per hour
Kodaira〜Tamagawa-Jyosui: 5→6 services per hour
Kokubunji〜Higashi-Murayama: 5→6 services per hour
・Ikebukuro Line
The last train connecting to Seibu Kyujomae(Seibu Dome) will be departing from Ikebukuro at 23:12, instead of 23:02.
There are minor changes during morning and evening hours and on timetable of Limited Express.