Latest Slack version: 4.50.143 (Windows; platform builds vary)
The current verified stable version of Slack is 4.50.143 (Windows; platform builds vary).
4.50.143 (Windows; platform builds vary)Release date: 2026-06-23. Source verified: 2026-07-17. Source: Slack official Windows release notes.
Slack's desktop collaboration app for team messaging, calls, notifications, and workspace activity.
Choose the right Slack downloadSource-backed version details
Slack official Windows release notes
Source verified: 2026-07-17.
Release date: 2026-06-23.
Communication
Slack latest-version FAQ
What is the latest version of Slack?
The latest verified stable version of Slack is 4.50.143 (Windows; platform builds vary). The release date in the catalog is 2026-06-23.
Where should I verify Slack releases?
Use Slack official Windows release notes or the official Slack website before critical installs. What-Version links to official sources and does not mirror installers.
Where do I download Slack?
Use the official Slack download page to choose the right build for macOS, Windows, Linux, iOS, or Android when one is verified.