Slack’s deprecation schedule

To ensure that we can deliver a consistent experience for our customers, Slack deprecates support for app versions, browsers and operating systems (OS) every six months, on the first business days of March and September. This article contains the most up-to-date information on upcoming deprecations and a full record of past deprecations.

Tip: To see which OS and Slack app versions we currently support, visit Minimum requirements for using Slack.


Desktop deprecations

Operating systems (OS)

Mac

Windows

Linux

OS version End of support
10.13 1st Sep 2021
10.12 1st Sep 2021
10.11 1st Sep 2021
10.10 1st Mar 2021
OS version End of support
Windows Server
Version 2008 R2
1st Sep 2021
Windows Server
Version 2008
1st Sep 2021
Windows 10
Version 1903
1st Sep 2021
Windows 10
Version 1709
1st Sep 2021
Windows 10
Version 1703
1st Sep 2021
Windows 10
Version 1607
1st Sep 2021
Windows 10
Version 1511
1st Sep 2021
Windows 10
Version 1507
1st Sep 2021
Windows 7 1st Mar 2021
OS version End of support
Ubuntu 16.04 1st Sep 2021
Ubuntu 14.04 1st Sep 2021
Fedora 31 1st Sep 2021

Note: If you’re using a Windows, Mac or Linux OS that has reached end of support, you’ll still be able to access Slack as long as you’re using a supported app version, but you won’t receive automatic app updates. Slack won’t be available to download from the App Store, Microsoft Store or Snap.


Slack app versions

App version End of support
4.8.0 1st Sep 2021
4.7.0 1st Sep 2021
4.6.0 1st Sep 2021
4.5.1 1st Sep 2021
4.5.0 1st Sep 2021
4.4.2 1st Sep 2021
4.4.0 1st Sep 2021
4.3.4 1st Sep 2021
4.3.2 1st Sep 2021
4.3.0 1st Sep 2021
4.2.0 1st Sep 2021
4.1.2 1st Sep 2021
4.1.1 1st Sep 2021
4.1.0 1st Sep 2021
4.0.2 1st Sep 2021
4.0.1 1st Sep 2021
4.0.0
1st Sep 2021


Mobile deprecations

Operating systems (OS)

iOS

Android

OS version End of support
12 1st Sep 2021
OS version End of support
7 1st Sep 2021
6 1st Sep 2021


Slack app versions

iOS

Android

App version End of support
20.07.20 1st Sep 2021
20.07.10 1st Sep 2021
20.06.20 1st Sep 2021
20.06.10 1st Sep 2021
20.05.20 1st Sep 2021
20.05.10 1st Sep 2021
20.04.20 1st Sep 2021
20.04.10 1st Sep 2021
20.03.30 1st Sep 2021
20.03.20 1st Sep 2021
20.03.10 1st Sep 2021
20.02.20 1st Sep 2021
20.02.10 1st Sep 2021
20.01.20 1st Sep 2021
20.01.10 1st Sep 2021
19.12.10 1st Sep 2021
19.11.20 1st Sep 2021
19.11.10 1st Sep 2021
19.10.20 1st Sep 2021
19.10.10 1st Sep 2021
19.09.20 1st Sep 2021
19.09.10 1st Sep 2021
19.08.20 1st Sep 2021
19.08.10 1st Sep 2021
19.07.30 1st Sep 2021
19.07.20 1st Sep 2021
19.07.10 1st Sep 2021
19.06.20 1st Sep 2021
19.06.10 1st Sep 2021
19.5.2 1st Sep 2021
19.5.1 1st Sep 2021
19.4.2 1st Sep 2021
19.4.1 1st Sep 2021
19.3.2 1st Sep 2021
19.3.1 1st Sep 2021
19.2.2 1st Sep 2021
19.2.1 1st Sep 2021
3.61 1st Sep 2021
3.60 1st Sep 2021
3.59 1st Sep 2021
3.58 1st Sep 2021
3.57 1st Sep 2021
3.56 1st Sep 2021
3.55 1st Sep 2021
3.54 1st Sep 2021
3.53 1st Sep 2021
3.52 1st Sep 2021
3.51 1st Sep 2021
3.50 1st Sep 2021
3.49 1st Sep 2021
3.48 1st Sep 2021
3.47 1st Sep 2021
3.46 1st Sep 2021
3.45 1st Sep 2021
3.44 1st Sep 2021
3.43 1st Sep 2021
3.42 1st Sep 2021
3.41 1st Sep 2021
3.40 1st Sep 2021
3.39 1st Sep 2021
3.38 1st Sep 2021
3.37 1st Sep 2021
3.36 1st Sep 2021
3.35 1st Sep 2021
3.34 1st Sep 2021
3.33 1st Sep 2021
3.32.1 1st Sep 2021
3.32 1st Sep 2021
3.31 1st Sep 2021
3.30 1st Sep 2021
3.29 1st Sep 2021
3.28 1st Sep 2021
3.27 1st Sep 2021
3.26 1st Sep 2021
3.25 1st Sep 2021
3.24 1st Sep 2021
App version End of support
20.07.20 1st Sep 2021
20.07.10 1st Sep 2021
20.06.20 1st Sep 2021
20.06.10 1st Sep 2021
20.05.20 1st Sep 2021
20.05.10 1st Sep 2021
20.04.20 1st Sep 2021
20.04.10 1st Sep 2021
20.03.30 1st Sep 2021
20.03.20 1st Sep 2021
20.03.10 1st Sep 2021
20.02.20 1st Sep 2021
20.02.10 1st Sep 2021
20.01.20 1st Sep 2021
20.01.10 1st Sep 2021
2.47.1 1st Sep 2021
19.5.2 1st Sep 2021
19.5.1 1st Sep 2021
19.4.2 1st Sep 2021
19.4.1 1st Sep 2021
19.3.2 1st Sep 2021
19.3.1 1st Sep 2021
19.2.2 1st Sep 2021
19.2.1 1st Sep 2021
19.12.10 1st Sep 2021
19.11.20 1st Sep 2021
19.11.10 1st Sep 2021
19.10.20 1st Sep 2021
19.10.10 1st Sep 2021
19.09.20 1st Sep 2021
19.09.10 1st Sep 2021
19.08.20 1st Sep 2021
19.08.10 1st Sep 2021
19.07.30 1st Sep 2021
19.07.20 1st Sep 2021
19.07.10 1st Sep 2021
19.06.20 1st Sep 2021
19.06.10 1st Sep 2021
2.76 1st Sep 2021
2.75 1st Sep 2021
2.74 1st Sep 2021
2.73 1st Sep 2021
2.72 1st Sep 2021
2.71 1st Sep 2021
2.7 1st Sep 2021
2.69 1st Sep 2021
2.68 1st Sep 2021
2.67 1st Sep 2021
2.66 1st Sep 2021
2.65 1st Sep 2021
2.64 1st Sep 2021
2.63 1st Sep 2021
2.62 1st Sep 2021
2.61 1st Sep 2021
2.6 1st Sep 2021
2.59 1st Sep 2021
2.58 1st Sep 2021
2.57 1st Sep 2021
2.56 1st Sep 2021
2.55 1st Sep 2021
2.54 1st Sep 2021
2.53 1st Sep 2021
2.52 1st Sep 2021
2.51 1st Sep 2021
2.5 1st Sep 2021
2.49 1st Sep 2021
2.48 1st Sep 2021
2.47 1st Sep 2021
2.46 1st Sep 2021
2.45 1st Sep 2021
2.44 1st Sep 2021
2.43 1st Sep 2021
2.42 1st Sep 2021
2.41 1st Sep 2021
2.4 1st Sep 2021
2.39 1st Sep 2021


Browser deprecations

Browser version End of support
Safari 13.1.2
1st Sep 2021
Chrome 82 1st Sep 2021
Firefox 77 1st Sep 2021
Edge 83 1st Sep 2021
Internet Explorer 11* 1st Sep 2021

*As of July 2019, customers cannot use Slack from Internet Explorer 11, but they can still sign in and manage their workspace settings from this browser until August 2021.