End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

DEBUGGER__.set_last_thread

set_last_thread(th)

# File tmp/rubies/ruby-3.0.5/lib/debug.rb, line 950
def set_last_thread(th)
  @last_thread = th
end

No documentation available

See also .resume .set_trace .make_thread_list .stdout