Need to show passports on Air Asia flights?

Hi,

I booked some internal Air Asia flights in Thailand online for all of us ( family of five) a few months ago.

As part of the booking process I had to register all our passport numbers.

Since booking the flights, two of my children%26#39;s passports expired and they were issued with new passports with different numbers.

My question is - does Air Asia check passports as part of the boarding process on internal flights? Will we need to bring the old expired passports with us, as well as our current ones?

Obviously I have the booking details with the reservation number, but I don%26#39;t know if this will be sufficient.

Can any of you experienced Air Asia travellers help?

Thanks.