The book Oriental Adventures for D&D 3.0 was updated in Dragon magazine #318, but it didn't include an update for the shaman's animal companion from 3.0 to 3.5.
I have heard that the druid had the same system of obtaining and using its animal companion as shamans did in 3.0 books. I don't have access to 3.0 books so I don't know if that's true.
Can anyone help with this? How would the 3.0 Oriental Adventures shaman's animal companion be updated to 3.5? Is it just the same as a druid's?