Slack deprecation policy for app versions, browsers and operating systems

To ensure that we’re able to deliver a consistent experience for our customers, Slack deprecates support for app versions, browsers and operating systems (OS) twice per year. Customers will be notified six months before deprecation to allow ample time for planning and upgrading.

What to expect

  • Slack will announce deprecations for Slack desktop and mobile app versions, browsers and OS that have reached the end of their support cycles in February and August each year.
  • When a deprecation is announced in February, the app version, browser or OS will no longer be supported on the first business day of September of the same year. When a deprecation is announced in August, the app version, browser or OS will no longer be supported on the first business day of March of the following year.
  • Depending on the device that you’re using, you may see a notification in Slack prompting you to upgrade before support ends.

Note: For a list of Slack's upcoming and past deprecations, visit Slack's deprecation schedule.


Deprecation details

Desktop

Browser

Mobile

Desktop OS

When an OS is no longer supported, you’ll still be able to access Slack as long as you’re using a supported app version or browser, but your experience may degrade over time. You won’t be able to update your app version until you’ve upgraded your OS. Slack won’t be available to download from the App Store, Microsoft Store or Snap. We won’t fix reported bugs, and new features may not be available.

Slack desktop app

When a Slack desktop app version is no longer supported, you’ll receive a notification prompting you to upgrade your app version to continue using Slack.

When a web browser is no longer supported, you’ll receive a notification prompting you to upgrade your browser to continue using Slack.

Note: When a browser has been fully deprecated, you’ll be blocked from signing in, creating new workspaces and managing settings for your workspace or Enterprise Grid organisation. You can continue these activities by upgrading to a supported browser.

When a mobile app version or OS is no longer supported, you’ll need to upgrade to a supported version to continue using Slack.


Deprecation timeline

Timeline of deprecation schedule, from announcement to end of support


Support cycles

Slack supports app versions, browsers and OS for different periods of time, taking into account development cycles and our customers' needs:

Version, browser or operating system Length of support
Slack desktop and mobile apps 12–18 months from release
Browsers 12–18 months from release
Windows, Mac and Linux At least six months from the time that the manufacturer stops OS support
iOS 2.5–3 years from release
Android 4.5–5 years from release