Trocar release assemblies for a surgical stapler

A trocar release assembly includes a housing, a release button, first and second springs, and a pin. The housing has top and bottom faces, side faces, and end faces. The end faces include opposed openings that define a passage between. The passage is configured to receive a sleeve of a trocar assembly. The release button is movably coupled to the housing and is movable between a compressed position and an expanded position. The first spring is positioned between the housing and the release button to bias the release button towards the expanded position. The pin slides within a chamber of the housing and is slidable between a retracted position and an extended position. The second spring is operably coupled with the pin to bias the pin towards an extended position.