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Slack deprecation policy for app versions, browsers, and operating systems
To ensure 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 starting in September of the same year. When a deprecation is announced in August, the app version, browser, or OS will no longer be supported starting in March of the following year.
Depending on the device you’re using, you may see a notification in Slack prompting you to upgrade before support ends.
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 organization. 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.