From: https://launchpad.net/ubuntu/xenial/+source/apache2/+changelog
[...] - Don't build experimental http2 module for LTS: + debian/control: removed libnghttp2-dev Build-Depends (in universe). + debian/config-dir/mods-available/http2.load: removed.
So it seems that it was removed on purpose!?
From: https:/ /launchpad. net/ubuntu/ xenial/ +source/ apache2/ +changelog
[...] config- dir/mods- available/ http2.load: removed.
- Don't build experimental http2 module for LTS:
+ debian/control: removed libnghttp2-dev Build-Depends (in universe).
+ debian/
So it seems that it was removed on purpose!?