Buster from testing to stable

eric@debian:~/Downloads/domesday_duplicator$ sudo apt-get update
Get:1 http://security.debian.org/debian-security buster/updates InRelease [39.1 kB]
Hit:2 http://dvswitch.org/ASL_Repository stretch InRelease
Get:3 http://ftp.us.debian.org/debian buster InRelease [118 kB]
Get:4 http://ftp.us.debian.org/debian buster-updates InRelease [46.8 kB]
Reading package lists... Done
N: Repository 'http://security.debian.org/debian-security buster/updates InRelease' changed its 'Version' value from '' to '10'
E: Repository 'http://security.debian.org/debian-security buster/updates InRelease' changed its 'Suite' value from 'testing' to 'stable'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.
N: Repository 'http://ftp.us.debian.org/debian buster InRelease' changed its 'Version' value from '' to '10.0'
E: Repository 'http://ftp.us.debian.org/debian buster InRelease' changed its 'Suite' value from 'testing' to 'stable'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.
E: Repository 'http://ftp.us.debian.org/debian buster-updates InRelease' changed its 'Suite' value from 'testing-updates' to 'stable-updates'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.

I make the gross assumption this kind of thing is expected and normal around release time..... but how do I accept explicitly before updates for this repository can be applied.  I don't see in the apt-secure man page where this seems to be covered?