Asking for advice.

I just renewed my passport inside Thailand and I'll have to do my 6 month DTV visa run around January. I read on this group that whenever I enter the country, I'll need to show both new and old passport because my DTV visa is stamped in the old one. But what is the process at the departure immigration like? If anyone has experience, please let me know.

Thank you!

"Until recently it was expected that flights to Thailand would start again the end of June"

I have 2 kids, 1 year old and 4 year old. Both US passports. Been in CM 6 months, neither have left. Husband potentially has work permit, kids & myself can go under his work permit. Currently myself & husband under tourist visas, kids have not left thailand since being here. Question - how to avoid paying overstay for kids when we all do the visa run for husbands Non-O visa?