Update checks

Krew will occasionally check if a new version is available and remind you to upgrade to a newer version.

This is done by calling the GitHub API, and the process does not collect any data from your machine.

If you want to disable the update checks, set the KREW_NO_UPGRADE_CHECK environment variable. To permanently disable this feature, add the following to your ~/.bashrc, ~/.bash_profile, or ~/.zshrc:

export KREW_NO_UPGRADE_CHECK=1