What is an Operating System?

An operating system (often called an OS) is the main piece of software that makes your phone, tablet or computer work.

Please be aware that Key can only support software versions which are in active support from the manufacturer and are currently receiving regular security updates.

Most manufacturers release regular security updates for their software. We recommend that you keep your device and apps up to date and always install the latest security updates whenever they become available. This helps keep you secure along with the organisation and the data of people we support. 

Key support the following Operating Systems for accessing work-related apps on your personal device such as the Microsoft 365 apps. 

Apple iOS

• 16
• 18
• 26

Apple iPadOS

• 16
• 17
• 18
• 26

Apple macOS

• 14 (Sonoma)
• 15 (Sequoia)
• 26 (Tahoe)

Google Android

• 13.0
• 14.0
• 15.0
• 16.0

Google ChromeOS

• Version 145 or later

Microsoft Windows

• Windows 11 version 24H2 or later

How can I check if my device is up to date?

Apple iOS/iPadOS

Go to Settings > General > Software Update

Apple macOS

Click on the Apple logo at the top left then click "About this Mac" The version name and number will appear.

Google Android

Open Settings > About phone > Software information then check the number below the Android version.

Google ChromeOS

1. Click the status area at the lower-right of the bottom of the screen
2. Click Settings
3. Click About ChromeOS
4. The ChromeOS version will be listed.

Microsoft Windows

Select Start > Settings > System > About

The edition and version will be shown under the Windows specifications.