Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Apple provides some examples (such as improvements to the WebKit engine in Safari) in a new support document.
Source: https://houstonianonline.com/apple-with-ios-16-4-1-a-and-macos-13-3-1-a-security-update/
Mobile Safari utilizes Apple's WebKit engine, which is an open-source browser engine derived from the KHTML project.