
Like the question, how can I update the answer system version without losing existing data and settings?

Like the question, how can I update the answer system version without losing existing data and settings?
In some cases, network problems in certain regions may prevent the validation of the version information provided by answer.
It is indeed a network problem, when I watch it now there is no problem now . But how to upgrade the answer system version without losing data and settings?
thank you , that is what i want.