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.
But there are two different versions of Automatic Updates.
Source: https://www.thesun.co.uk/tech/22872412/apple-iphone-settings-rapid-security/
The feature is available on your iPhone if you go to Settings, General, Software Update, Automatic Updates and toggle on Security Responses & System Files.