System requirements for using Slack

If you’re curious about the system requirements needed to run Slack, read on to learn which operating systems (OS) and browsers we support. For the best experience, we recommend using the latest versions.

Note: Slack updates these system requirements twice per year in March and September. Visit Slack’s support lifecycle to learn more.


OS OS version App version
MacOS OS X 10.14 or above 4.20.0 or above

Windows 8.1

Windows 10 version 1909
Windows 10 version 20H2 or above
Windows 11

4.20.0 or above

Linux Ubuntu LTS releases 18.04 or above
Red Hat Enterprise Linux 8.0 or above
4.20.0 or above

Note: Starting March 1, 2022, Slack will no longer support Fedora Linux distributions.

Tip: If you’re running into issues with downloading the latest version of the desktop app, visit Update the Slack desktop app.


OS  OS version App version
iOS iOS 14 or above 21.09.10 or above
Android* Android 9 or above 21.09.10 or above

*We only support Android devices that have Google Play Services installed by default.

Web browser


Browser version


Version 90 or above


Version 88 or above


Version 14.1 or above

Microsoft Edge

Version 90 or above

Note: Google Chrome and Firefox are the only browsers that support huddles.

Learn more

To learn about when we stop supporting certain versions and to see a list of versions that will soon be blocked, visit Slack support lifecycle for app versions, browsers, and operating systems.