org-agenda-max-todos

org-agenda-max-todos is a variable defined in `org-agenda.el'.
Its value is

nil

Documentation:
Maximum number of TODOs to display in an agenda.
This can be nil (no limit) or an integer or an alist of agenda
types with an associated number of entries to display in this
type.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.4 of Emacs.