<ul><li>The macOS 15.5 update is light on features, but the Safari 18.5 update includes a new developer feature called 'Declarative Web Push' aimed at saving battery life for users.</li><li>Declarative Web Push is a more efficient approach to web notifications that reduces battery drain in Safari and has already been introduced in iOS and iPadOS.</li><li>This feature allows developers to switch notification implementations to a simpler JSON format, making notifications reliable and timely without consuming excessive system resources.</li><li>Users who allow websites to send them notifications will benefit from this new system's improved performance and privacy features, with the update available on macOS Sonoma and macOS Ventura as well.</li></ul>

The new macOS update includes a battery boost for Safari

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