hook (filter): Whether links should point to Calypso or wp-admin.<p>Options: true - Calypso. false - wp-admin.</p>
No new hooks added in 9.3.1 Below are recently added.
hook (filter): Allow for additional elements to be added to the Global Site Tags array.
hook (filter): Filters Jetpack's No User testing mode.
hook (filter): Allow other valid hostnames.<p>This can be useful in cases where the token hostname is expected to be different from the get_home_url (ex. AMP recaptcha token contains a different hostname)</p>
hook (filter): Filter whether the current request is for accessing the frontend.
hook (filter): Filters the Instagram embed token that is used for querying the Facebook API.<p>When this token is set, requests are not proxied through the WordPress.com API. Instead, a request is made directly to the Facebook API to query for information about the embed which should provide a performance benefit.</p>