Slack in a browser (like Chrome, Edge, or Safari) is always automatically updated by Slack’s servers. To see the version, you can inspect the page or check the browser console, but generally, you don’t need to. The web client always reflects the Slack current version served from their CDN.

Bug Fixes: Solving issues with notifications, screen sharing, or slow loading times.

New Data Table blocks have been added to improve data visualization in messages.

As of late May 2026, Slack continues to evolve, focusing on AI-driven productivity, improved performance, and streamlined workflows. Keeping your desktop application on the is crucial not only for accessing new features but also for maintaining security and stability.

: Slackbot has evolved into a context-aware AI agent that can draft emails, analyze data via Agentforce (integrated with Salesforce), and help automate routine tasks.

Slack 4.38. ... This release includes security improvements. Updating is recommended. Slack for Windows - Release Notes

Slack usually updates automatically, but you can force an update: Select the Help menu and click Check for updates . Windows (Store): Open the Microsoft Store to update. Mobile: Visit the Apple App Store or Google Play Store. Why You Should Run the Latest Version Using the current version of Slack ensures:

The isn’t a static target—it’s a moving, improving, and vital component of your daily workflow. Whether you’re an individual freelancer or an IT admin managing hundreds of seats, falling behind by even a few versions exposes you to bugs, security risks, and missing features.

Updated frequently via the App Store and Google Play to match desktop capabilities. Important Note on 2026 Updates

A long-requested feature that finally allows users to pin threads, channels, or canvases in a side-by-side view for better multitasking.