This is all courtesy of user willooi over at neogaf:
Just a heads up to San Andreas owners on Steam:
The latest update, coinciding somewhat with the recent 360 re-release, adds native controller support but takes away a lot more.
Highly recommend manually stopping it if you can, as many iconic songs are now gone due to licence expiry purposes (full list below), and older save files may also be affected. More details here (thanks Im_Special).
- Adds support for XInput controllers (Xbox 360 controller)
- Makes "Steering with Mouse" enabled by default
- Removes several songs for all owners
- Removes several resolution options, including 1920x1080 (This was broken in the original version, then fixed in an update - now unfixed with this latest update)
- Loading a game save from the original version just starts a new game
- Occasional crashes during car explosions if another monitor is attached
"Running Down A Dream"
"Woman To Woman"
"You Dropped A Bomb On Me"
Radio Los Santos
"I Don't Give A f*ck"
"Killing in the Name of"
"Ring My Bell"
"Don't Let It Go To Your Head"
Master Sounds 98.3
"Rock Creek Park"
"Soul Power '74"