Introducing NoState Prefetch
Chrome 63 shipped with NoState Prefetch. NoState Prefetch is a mechanism for fetching resources in advance that uses less memory than the deprecated prerendering process.
Take control of your scroll: customizing pull-to-refresh and overflow effects
The CSS overscroll-behavior property allows developers to override the browser's overflow scroll effects when reaching the top/bottom of content. It can be used to customize or prevent the mobile pull-to-refresh action.
chrome63 css overscroll scroll
Removing ::shadow and /deep/ in Chrome 63
Say goodbye to shadow-piercing CSS selectors.
webcomponents shadowdom style css deprecations removals chrome63
Deprecations and removals in Chrome 63
A round up of the deprecations and removals in Chrome 63 to help you plan. In this version, new behavior on interface properties, removal of a webkit function, and a change to RTCRtcpMuxPolicy.
