So as the title says all property drawer attributes seem to be ignored on items in an array. An easy test case for this is the following:
public class Test : MonoBehaviour
{
[Range(0.0f, 1.0f)] public float[] m_floats;
}
That used to expose in the inpsector as an array of sliders now the range attribute is ignored. This seems to have been broken before or at alpha 7 (and is still not working in alpha 9), not sure if it was working in alphas before then but it was working in 2019.1