Does updating via fastboot reset data or will it work like regular updates?

[searchworlds]

as in the title , doeas updating via fastboot from an older weekly version to a new weekly version reset my data , or will it work like old updates and keep all my app and files safe?

 

[katerpanne]

as in the title , doeas updating via fastboot from an older weekly version to a new weekly version reset my data , or will it work like old updates and keep all my app and files safe?

if everything went good it will update the system and not delete your user data