choice and control, e.g. allow end users/admins to control and configure the feature, whether they want to use a custom DoH server or just keep on using their regular DNS[...].There are no plans to force any specific resolver without user consent / opt-in.[...]We are considering a first milestone where Chrome would do an automatic upgrade to DoH when a user's existing resolver is capable of it" https://mailarchive.ietf.org/arch/msg/doh/JhFPKoyGU2JqKmUk3GEe5yjuSHI "we may have DoH/TRR on by default in some regions and not others[...].The user will be informed that we have enabled use of a TRR and have the opportunity to turn it off at that time" https://mailarchive.ietf.org/arch/msg/doh/po6GCAJ52BAKuyL-dZiU91v6hLw ・デフォルト化予定なし ・管理者コントロールも考慮 ・現行リゾルバがDoH対応 していれば、DoHへ自動 アップグレードする →opportunistic DoH? ・デフォルト化予定あり (米国等) ・ユーザへ告知、無効化オプ ションを提供