Many of you have likely already heard this, so this will not be new news.
Apparently you are now required to get an Exit Stamp from Immigration which acts as a 'No Objection to Depart.' If the stamp is not present in the child's passport, you cannot board your flight and people are saying that you will/could be detained.
As I understand, once you have received your passport, you will be required to submit it to Immigration in order to get this stamp. It is not yet known what the timing or cost is.
If you have more information on this, please leave me a comment and I will update my information.