Sum 41 Says It Will Disband After Final Album and Tour - The New York Times

Deryck Whibley Explains Why Sum 41 Decided to Split

Sum 41 to disband

Sum 41 Unleash Landmines, First New Song in Four Years

Sum 41 to “Call It Quits” With Final Album, 'Heaven :x: Hell' - American Songwriter

Sum 41 tour will be farewell, as band reveals split, final album

So am I Still Waiting : r/Sum41

Sum 41 Disbands After 27 Years Of Pop Punk Madness!

Sum 41 tour will be farewell, as band reveals split, final album

Sum 41 to Break Up After 27 Years - American Songwriter

Sum 41 Announces Final Tour Dates and Last-Ever Show Ahead of Their Separation

Sum 41 Says It Will Disband After Final Album and Tour - The New York Times

This response from Deryck (to someone who was hating) makes it seem like “the decision to break up” might be more recent than we think it was. LTBTR was announced by all

SUM 41 To Release One Final Album, Will Break Up This Year

Break-ups: Sum 41 disbands