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"Fiber" was the codename for the internal rewrite that was completed and delivered as React 16.0. That rewrite has enabled all of the further functionality tha
by acemarke 8y ago
"Fiber" was the codename for the internal rewrite that was completed and delivered as React 16.0.
That rewrite has enabled all of the further functionality that's been implemented in 16.x, including the first stages of "Concurrent Mode".