No new hooks added in 8.4.1 Below are recently added.

    crowdsignal_shortcode_before

    hook (action): Hook into the Crowdsignal shortcode before rendering.

    Source: modules/shortcodes/crowdsignal.php:453

    wp_masterbar_logout

    hook (action): Hook into the log out event happening from the Masterbar.

    Source: modules/masterbar/masterbar.php:207

    jetpack_facebook_likebox_hide_cta

    hook (filter): Filter Facebook Likebox's widget call to action button

    Source: modules/widgets/facebook-likebox.php:93

    jetpack_use_iframe_authorization_flow

    hook (filter): Filters whether the connection manager should use the iframe authorization flow instead of the regular redirect-based flow.

    Source: packages/connection/src/class-manager.php:730

    jetpack_load_experimental_blocks

    hook (filter): Alternative to `JETPACK_EXPERIMENTAL_BLOCKS`, set to `true` to load Experimental Blocks.

    Source: class.jetpack-gutenberg.php:323

    jetpack_auth_cookie_samesite

    hook (filter): Filters the SameSite attribute to use in auth cookies.

    Source: modules/wpcom-block-editor/class-jetpack-wpcom-block-editor.php:433

    jetpack_disable_cross_site_auth_cookies

    hook (filter): Allow plugins to disable the cross-site auth cookies.

    Source: modules/wpcom-block-editor/class-jetpack-wpcom-block-editor.php:408

    jetpack_feature_feature_enabled

    hook (action): Fires when a specific Jetpack package feature is initalized using the Config package.

    Source: packages/config/src/class-config.php:139

    jetpack_get_file_for_environment

    hook (filter): Filters the URL for a file passed through the get_file_url_for_environment function.

    Source: packages/assets/src/class-assets.php:54

    jetpack_json_api_site_can_view_hosting

    hook (filter): Filter whether the Hosting section in Calypso should be available for site.

    Source: sal/class.json-api-site-base.php:433