cf-plugin-update-cli 
cf-plugin-update-cli
is a cloudfoundry/cli plugin. It allows you to update cli to the latest version.
Demo
The following domo shows updating from v6.14.0
to v6.16.1
(the latest ver at 201603).

Install
To install this plugin, use cf
command. It's hosted on Community Plugin Repo.
$ cf install-plugin -r CF-Community "update-cli"
Usage
To update, run the following command,
$ cf update-cli
It will be atumatically detect your OS/Arch and installs appropriate binary and replace with old one. If permission denied to write new binary, then use sudo
.
Author
Taichi Nakashima