Defense lawyer Tim Warren says Schurr was released Wednesday morning after serving 120 days in the Women’s Reception and Diagnostic Center in Vandalia, Missouri.
Schurr pleaded guilty in February to involuntary manslaughter for leaving her disabled daughter unattended last October.
The youngster died of asphyxiation because of problems with her feeding machine.
In April, Circuit judge Daniel Kellogg ordered a six-year prison term, but retained jurisdiction and ordered 120 days of shock time in jail.
On Wednesday, Kellogg granted five years probation. Warren says the six-year prison term remains in effect, and could be reinstated if Schurr violates the terms of her probation.