how do i upgrade or update my template from 8.3 to 8.4

[Marijuana]

my xml is 3.8.3. how do i upgrade or update it to 3.8.4 cant seem to figure it out its a custom one sorda

[napy8gen]

just save your current style from the style & templates> download style.
then upload it back.

3.8.3 to 3.8.4 if your skin is minimal edited there is no outdated template.