down all changed interfaces
Testing Done: Tested man page
(cherry picked from commit 93ecf73b22d317dcf2a0924030f34f008fc25c33)
(cherry picked from commit 73d846c447d575a72822abd5ac5d5d758e9686e5)
Testing Done: build and tested man page
(cherry picked from commit 540aa30332a3c49e8a2be2c3975a3a24dbbf1209)
(cherry picked from commit 9426b13318950a6d285e6dcc1844d8cdc0d140df)