Project LightSpeed: Rewriting the Messenger codebase for a faster, smaller, and simpler messaging app

We are excited to begin rolling out the new version of Messenger on iOS. To make the Messenger iOS app faster, smaller, and simpler, we rebuilt the architecture and rewrote the entire codebase, which is an incredibly rare undertaking and involved engineers from across the company. Compared with the previous iOS version, this new Messenger … Continue reading Project LightSpeed: Rewriting the Messenger codebase for a faster, smaller, and simpler messaging app […]

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