HTTP/2 how to activate?

Hi,

# apache2 -v
Server version: Apache/2.4.10 (Debian)

but HTTP/2 is only with Apache/2.4.17+ possible?
how to i get Apache to that Version or later?

I already checked this KB: https://kb.plesk.com/de/128733
but to be honest, i don't understand.

Fact is, I'm not using nginx.

Any tips would be awesome.