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Microsoft announces the Brotli compression in Microsoft Edge. With EdgeHTML 15.14986, Microsoft Edge supports Brotli as an HTTP content-encoding method.

Microsoft Edge Team’s senior program manager, Rob Trace, announced Brotli as the newest “HTTP content-encoding method” available in Microsoft Edge. Windows Insider in the fast ring running the Windows 10 Insider Preview Build 14986 and above can take advantage of it.

“Brotli is a compression format defined in RFC 7932, previously available as part of the WOFF2 font format. When used as an HTTP content-encoding method, Brotli achieves up to 20% better compression ratios with similar compression and decompression speeds (PDF). This ultimately results in substantially reduced page weight for users, improving load times without substantially impacting client-side CPU costs. As compared to existing algorithms, like Deflate, Brotli compression is more efficient in terms of file size and CPU time.”

The Brotli compression will be released to production version along with the Windows 10 Creator’s Update early next year.