> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.trugrid.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# What if I am on an old Mac OS X version?

# What if I am on an old Mac OS X version?

Running an older version of the Mac OS X operating system can cause issues when trying to use TruGrid or when installing the TruGrid Mac Desktop application.

||| It is unsafe to use older / out-of-support operating systems because they won't have the latest security updates from the OS vendor. We recommend using the latest Mac OS X operating system version or at least 11.5. 

If you are using an older Mac OS X version, please perform an upgrade on your Mac: 
* [Here](https://support.apple.com/en-us/HT201260) is a step by step guide on how you can see what version of the Mac OS X operating system is currently installed on your machine.
* [Here](https://support.apple.com/en-us/HT201475) is a step by step guide on how to upgrade your Mac OS X to the latest version.

It's also important to make sure the Mac has Microsoft Remote Desktop version 10.3.8 or newer installed from the App Store.

**NOTE: **There are two types of TruGrid Connectors for Mac (Desktop Connector and Web Connector)

| For the best experience, we recommend using the [Mac Desktop Connector](/en/article/where-are-the-trugrid-desktop-connectors-5u98cm/)

![](https://storage.crisp.chat/users/helpdesk/website/f473d72e7d7c5000/main-page_1qsuqm2.png)