sudo apt-get update only updates the information about what packages/versions are available. You need to follow it with sudo apt-get upgrade. Then restart your droplet: sudo shutdown -r now. Hope that helps!

 

Пакеты можно искать через веб-интерфейс

http://www.debian.org/distrib/packages#search_packages

или с помощь команды:

apt-cache search php7 | less