When uploading a contact image as described in http://oxpedia.org/wiki/index.php?title=HTTP_API#Update_a_contact we do not longer downsize the image to 90x90px.

Possible sideeffect is, that every client which relies on a 90x90 size when getting the image may brake it's layout. Please add the parameters &width=90&height=90 to the image URL to ensure a proper image size.