Upgrade of the beam transport lines and the beam-abort system and development of a tune compensator in KEKB

The KEKB collider achieved a maximum peak luminosity of 2.1 x 10(34) cm(-2) s(-1) and an integrated luminosity of 1 ab(-1) in its ten-year operation. Behind these glorious records there have been uncountable improvements in every subsystem. This paper describes the improvements in the beam transport line, injection kickers, septum magnets, the beam-abort system, and a newly developed pulsed-quadrupole system in detail.