The following items are new for Chef Infra Client 12.15 and/or are changes from previous versions. The short version:

- **Omnibus packages are now available for Ubuntu 16.04**
- **New cab_package resource** Supports the installation of cabinet packages on Microsoft Windows.
- **Added new Chef client exit code (213)** New exit code when Chef client exits during upgrade.
- **Default for gpgcheck on yum_repository resource is set to true**
- **Allow deletion of registry_key without the need for users to pass data key in values hash**
- **If provided, knife ssh will pass the -P option on the command line as the sudo password and will bypass prompting**

## cab_package

Supports the installation of cabinet packages on Microsoft Windows. For example:

```ruby
cab_package 'Install .NET 3.5 sp1 via KB958488' do
  source 'C:\Users\xyz\AppData\Local\Temp\Windows6.1-KB958488-x64.cab'
  action :install
end
```

```ruby
cab_package 'Remove .NET 3.5 sp1 via KB958488' do
  source 'C:\Users\xyz\AppData\Local\Temp\Windows6.1-KB958488-x64.cab'
  action :remove
end
```

<div class="admonition-note">
<p class="admonition-note-title">Note</p>
<div class="admonition-note-text">

The `cab_package` resource does not support URL strings in the source property.

</div>
</div>

## exit code 213

This new exit code signals Chef Infra Client has exited during a client upgrade. This allows for easier testing of Chef Infra Client upgrades in Test Kitchen. See [Chef Killing](https://github.com/chef-cookbooks/omnibus_updater#chef-killing) in the omnibus_updater cookbook for more information.