TLDR Tech / DevOps
How Slack Rebuilt Notifications đŸ“£
Slack rebuilt its notification system from scratch to address overwhelming noise and confusion, unifying four conflicting mental models into one consistent approach across desktop and mobile that separates "what to notify about" from "how to receive notifications." The overhaul, which required deep backend and frontend coordination, including migrating millions of users and rewriting some of the oldest iOS code, introduced auto-save preferences and clearer controls that resulted in significantly fewer support tickets and users reporting they finally feel in control of their notifications.
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