it's unclear what the resolved value that DS.Adapter#updateRecord suppose to return

[oriSomething]

i notice it works with the promise when resolved with undefined, but it's unclear what it suppose to resolve if some data changed in the model because of the save

[bmac]

Hi @oriSomething. I opened a pr to better document the resolved value of DS.Adapter#updateRecord. Please let me know if it answers your question. #3713

[oriSomething]

first of all, thanks!
second, yes and no, because the serialized format is still unclear explanation to me. and i can't say if it's not another issue, but for example i get an error when i return JSON-API format. i'm not sure what's happen another the hood and what functions are called for the returned data and get a blank error.