Workers at Your Service

Workers at Your Service

The Service Worker API exposes persistent background processing capabilities to web pages.

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Release Notes for Safari Technology Preview 49

Release Notes for Safari Technology Preview 49

Safari Technology Preview Release 49 is now available for download for macOS Sierra and macOS High Sierra.

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Release Notes for Safari Technology Preview 48

Release Notes for Safari Technology Preview 48

Safari Technology Preview Release 48 is now available for download for macOS Sierra and macOS High Sierra.

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Speedometer 2.0:
A Benchmark for Modern Web App Responsiveness

Speedometer 2.0:
A Benchmark for Modern Web App Responsiveness

In 2014, the WebKit team at Apple released Speedometer 1.0, a benchmark for web app responsiveness.

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Release Notes for Safari Technology Preview 47

Release Notes for Safari Technology Preview 47

Safari Technology Preview Release 47 is now available for download for macOS Sierra and macOS High Sierra.

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What Spectre and Meltdown Mean For WebKit

What Spectre and Meltdown Mean For WebKit

Security researchers have recently uncovered security issues known as Meltdown and Spectre.

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Release Notes for Safari Technology Preview 46

Release Notes for Safari Technology Preview 46

Safari Technology Preview Release 46 is now available for download for macOS Sierra and macOS High Sierra.

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Release Notes for Safari Technology Preview 45

Release Notes for Safari Technology Preview 45

Safari Technology Preview Release 45 is now available for download for macOS Sierra and macOS High Sierra.

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Release Notes for Safari Technology Preview 44

Release Notes for Safari Technology Preview 44

Safari Technology Preview Release 44 is now available for download for macOS Sierra and macOS High Sierra.

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Release Notes for Safari Technology Preview 43

Release Notes for Safari Technology Preview 43

Safari Technology Preview Release 43 is now available for download for macOS Sierra and macOS High Sierra.

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Release Notes for Safari Technology Preview 42

Release Notes for Safari Technology Preview 42

Safari Technology Preview Release 42 is now available for download for macOS Sierra and macOS High Sierra.

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Release Notes for Safari Technology Preview 41

Release Notes for Safari Technology Preview 41

Safari Technology Preview Release 41 is now available for download for macOS Sierra and macOS High Sierra.

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