Linux: How to install stuff that isn't available in my package manager?

[charlesr]

I need to install the latest one here: https://pecl.php.net/package/memcached
So in our Ubuntu server, I do:
apt-get install php-memcached
But this installs 3.0.1
Searching (apt-cache) for "memcached" reveals nothing extra

So... Do I need to add a new repository? Or do it manually somehow?

[MartyG]

If you're downloading it from that website above, you'll need to compile it from the source code - the software versions you get via apt-get install are the most recent version currently available on the OS repositories (and on Ubuntu it's rarely the most recent, you'd need a rolling distro for that like Arch at the cost of stability).

If you follow this guide you should be able to get it up and running: https://docs.vultr.com/how-to-instal...n-ubuntu-20-04

You'll install it as a service daemon after you've compiled to the binaries.

[charlesr]

Turns out the ubuntu version the server is on isn't compatible with the latest memcached. Server upgrade first