The stack vs one card at a time, both on the new chrome, since the day the stack shipped. Live: every publish joins the stack arm.
Aug 14 2026
Chrome tag ships
New publishes start reporting desktop_chrome. Sites republished this week become the chrome control.
Aug 21 2026
New chrome for everyone
The chrome control freezes and its treatment arm opens. Every publish is the new chrome, one card at a time.
Sep 11 2026
Stack for admins, layout tag ships
New publishes report desktop_layout. Admins publish on the stack; everyone else still slides between cards. The stack report's window opens here.
Sep 12 2026
Stack for everyone
The chrome arm closes and the stack arm opens. Every publish since is the new chrome on the stack.