Subscription Arrow not visible - v0.36.7

Hey all,

can someone please help me resolve the issue?
I am using version - v0.36.7, but not able to send dashboard via email subscription as subscription arrow is not available on the dashboard (pic below).

I have already enabled slack and email under admin panel.

Subscriptions were added in version 38, you need to upgrade

Thanks Luiggi,
it works !