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For the most secure and functional experience, always use official channels to Download Slack . Slack for Windows - Release Notes
Support is scheduled to end on May 18, 2026 . Version 4.40 and below: Support ended on November 24, 2025 .
Before you search for a , it is vital to understand Slack’s current support policy. As of early 2026, Slack has established clear "End of Support" dates for older application versions:
Slack 4.23.0 Download Guide: Compatibility and Updates Slack 4.23.0 is a legacy desktop version of the popular team communication platform. While Slack regularly rolls out new features like AI-powered agents and context-aware enterprise search, some users may seek out specific older versions for compatibility with aging operating systems or specialized hardware. Compatibility and Support Lifecycle
Because 4.23.0 falls well below these thresholds, users on this version will likely receive persistent notifications to upgrade. In many cases, the app may eventually block access until you update to a supported version like , which is often required for modern security and feature parity. Where to Download Slack