Slack 4.0

In plain words

Slack 4.0 is a desktop messaging application designed for teams and workgroups who need to communicate and collaborate. The latest version focuses on performance improvements, featuring faster loading times and smoother operation across devices. A key addition is offline functionality, allowing users to continue working even without an internet connection. The update delivers a more efficient experience compared to previous versions.

written from the facts on this page · September 2026

From the sources

The latest version of our desktop app provides a smoother, faster experience for all. Some notable changes include faster loading times, better overall performance and the ability to work offline.

Download Slack for free for mobile devices and desktop. Keep up with the conversation with our apps for iOS, Android, Mac, Windows and Linux.

It looks like you are on a device that we don’t yet support. Take a look at our desktop apps for Mac , Windows and Linux , or mobile apps on iOS and Androidfrom slack.com

• 
  Slack for Mac2016 · slack.com · ▲937

  A new, improved Slack desktop app for Mac

• 
  Slack2013 · slack.com · ▲2,714

  Be less busy. Real-time messaging, archiving & search.

• 
  Slack 2.02020 · ▲424

  Improvements that make working in Slack easier for everyone

• 
  Slack for Mobile 2.02015 · slack.com · ▲300

  Rebuilt from the ground up

• 
  Thread Messaging on Slack2017 · slack.com · ▲710

  Keep conversations organized and easy to follow with Threads

• 
  Slack Shared Channels2017 · slack.com · ▲480

  Work with anyone in Slack

• 
  Lofi Cities – Pixel-art city nights with browser-generated lofi▲319

  Endless lofi beats composed live in your browser, over pixel-art nights in Paris, Tokyo, New York, Hong Kong, Sydney, San Francisco and more. Free, no sign-up.

  Work · 24d ago · loficities.com

• 
  Smooth Recorder▲257

  Mac screen recordings that look edited when you hit stop

  Work · 18d ago · smoothrecorder.com

• 
  Figma Specs▲220

  A container for your context that lives on the Figma canvas

  Work · 2d ago · figma.com

• 
  The rarest tech books and docs you've probably never read▲190

  Work · 12d ago · readrare.com

• 
  Tandem▲919

  A virtual office for remote & distributed teams

  Dev tools · 2019 · tandem.chat

• 
  Memberstack▲850

  The no-code membership platform for any website

  Dev tools · 2019 · memberstack.com

• 
  SaaS Pages▲747

  900+ Screenshots of the best SaaS landing pages

  Growth · 2019 · saaspages.xyz

• 
  Stonly▲742

  Create interactive step-by-step guides

  Growth · 2019 · stonly.com

• 
  Poolside FM 2.0▲676

  Super-summer music website inspired by a '90s OS

  Life & fun · 2019 · v2.poolside.fm

• 
  Really Good Emails 2.0▲674

  Really good curated email design and code inspiration

  Dev tools · 2019 · reallygoodemails.com