With the release of Safari 14 for macOS Big Sur, iPadOS 14, iOS 14, and watchOS 7, WebKit brings significant improvements to performance and privacy along with a host of new features for web developers.
Even if you have a lot of tabs open, you likely only focus on a small set of them to get a task done. Starting in this release, Chrome is actively managingyourcomputer’sresources to make the tabs you care about fast—while allowing you to keep hundreds of tabs open—so you can pick up where you left off.
"Earlier today, I was briefly entertaining the idea of writing a library to wrap and enhance querySelectorAll in certain ways. I thought I’d rather not introduce a Parsel dependency out of the box, but only use it to parse selectors properly when it’s available, and use more crude regex when it’s not..."