# Chef 13.12.3 Released!

**URL:** <https://discourse.chef.io/t/chef-13-12-3-released/13930>\
**Category:** Chef Release Announcements\
**Created:** [November 1, 2018, 10:49pm UTC](https://discourse.chef.io/t/chef-13-12-3-released/13930 "2018-11-01T22:49:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tas50](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.chef.io/tas50/32/941_2.png) [@tas50](https://discourse.chef.io/u/tas50)\
**Post date:** [November 1, 2018, 10:49pm UTC](https://discourse.chef.io/t/chef-13-12-3-released/13930/1 "2018-11-01T22:49:46Z")

</div>

Hey Everyone,

We're happy to announce the release of Chef v13.12.3 for those using Chef 13! This release includes important security updates plus some great enhancements.

## Smaller Package and Install Size

We trimmed unnecessary installation files, greatly reducing the sizes of both Chef packages and on disk installations. MacOS/Linux/FreeBSD packages are ~50% smaller and Windows are ~12% smaller. Chef 13 is now smaller than a legacy Chef 10 package.

## macOS Mojave (10.14)

Chef is now tested against macOS Mojave and packages are now available at [downloads.chef.io](http://downloads.chef.io).

## SUSE Linux Enterprise Server 15

- Ohai now properly detects SLES 15
- The Chef package will no longer remove symlinks to chef-client and ohai when upgrading on SLES 15

## Updated Chef-Vault

Updating chef-vault to 3.4.2 resolved multiple bugs.

## Faster Windows Installations

Improved Windows installation speed by skipping unnecessary steps when Windows Installer 5.0 or later is available.

## Ohai Release Notes 13.12

### macOS Improvements

- sysctl commands have been modified to gather only the bare minimum required data, which prevents sysctl hanging in some scenarios
- Extra data has been removed from the system\_profile plugin, reducing the amount of data stored on the chef-server for each node

## New Deprecations

### system\_profile Ohai plugin removal

The system\_profile plugin will be removed from Chef/Ohai 15 in April, 2019. This plugin incorrectly returns data on modern Mac systems. Further, the hardware plugin returns the same data in a more readily consumable format. Removing this plugin reduces the speed of the Ohai return by ~3 seconds and also greatly reduces the node object size on the Chef server

### ohai\_name property in ohai resource

The `ohai` resource's unused `ohai_name` property has been deprecated. This will be removed in Chef 15.0.

## Security Updates

### Ruby 2.4.5

Ruby has been updated to from 2.4.4 to 2.4.5 to resolve multiple CVEs as well as bugs:

- [CVE-2018-16396](https://www.ruby-lang.org/en/news/2018/10/17/not-propagated-taint-flag-in-some-formats-of-pack-cve-2018-16396/)
- [CVE-2018-16395](https://www.ruby-lang.org/en/news/2018/10/17/openssl-x509-name-equality-check-does-not-work-correctly-cve-2018-16395/)

# Get the Build

As always, you can download binaries directly from [downloads.chef.io](https://downloads.chef.io/chef/13.12.3) or by using the `mixlib-install` command line utility:

```auto
$ mixlib-install download chef -v 13.12.3

```

Alternatively, you can install Chef using one of the following command options:

```auto
# In Shell
$ curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P chef -v 13.12.3

# In Windows Powershell
. { iwr -useb https://omnitruck.chef.io/install.ps1 } | iex; install -project chef -version 13.12.3

```

If you want to give this version a spin in Test Kitchen, create or add the following to your `kitchen.yml` file:

```auto
provisioner:
  product_name: chef
  product_version: 13.12.3

```

Enjoy,  
Tim