Safari 8 was announced at WWDC 2014 and released with OS X Yosemite. It included WebGL support, stronger privacy features, increased speed and efficiency, enhanced iCloud integration, and updated design.^[48][49]

Safari 8 introduced the following features, available on OS X Yosemite:^[44]

• WebGL support, which allows developers to create 3D experiences that work natively in the browser.
• IndexedDB, which allows web developers to store structured data for web applications that work online or require large amounts of data to be cached client side.
• JavaScript Promises, which enables JavaScript authors to more naturally work with asynchronous programming patterns.
• CSS Shapes and Compositing. Using CSS, websites can now easily flow text around images and geometry shapes, and perform image compositing operations on DOM elements.
• SPDY. Safari supports SPDY, an open networking protocol that websites can adopt to reduce page load latency and improve security.
• HTML5 Premium Video. Websites that provide video can now take advantage of EME to deliver encrypted, energy-efficient video in the browser