Good for us that @Rail_Tweet and his gang have the inside info, down there in the cafe car, and send out the news by tweets.
And, fortunately the automated ticketing system has the new schedule in place. (Which makes it even more incomprehensible that they haven't put it on line as a timetable somewhere).
For those of us commuting between San Diego County and LA, the morning trains are only different by a minute or two (though the #563 "express" is now #599).
There are bigger changes for the afternoon trip back from LA Union Station. Train 578, the 2pm departure from LA, is now train 580, departing at 3.05.
Train 582 (4.10pm) and Train 784 (5.10pm) remain.
But train 592 (8.30pm) is now replaced by train 790 departing at 7.30pm.