If Slack forces you to update or displays a "Your version of Slack is no longer supported" banner, it means you are on a "legacy" version.
Slack 4.10.0 is a significant update that brings several new features, bug fixes, and performance improvements. With its enhanced mobile apps, improved performance, and new emoji reactions, Slack continues to be a leading communication platform for teams and organizations. slack current version
You cannot manage what you do not measure. Here is how to verify which version of Slack you are currently running. If Slack forces you to update or displays
The most significant updates in the early 2026 releases focus on Agentic AI What's New - Slack and new emoji reactions