The law says
IRPR r. 325(1)A warrant for arrest and detention made under the former Act is a warrant for arrest and detention made under the Immigration and Refugee Protection Act.
Detention orders
(2)An order for the detention of a person made under the former Act is an order to detain made under the Immigration and Refugee Protection Act.
Justice Laws is the authoritative version. If this copy and it ever differ, Justice Laws wins.