The Wayback Machine - https://web.archive.org/web/20200512220830/https://developer.jetpack.com/

    No new hooks added in 8.5 Below are recently added.

    jetpack_publicize_options

    hook (filter): Filters the options for Publicize. As of Jetpack 8.5, the array keys could be: attach_media bool If Publicize should send the image to the social media platform. Default false. View Example

    Source: :88

    jetpack_show_setup_wizard

    hook (filter): Determines if the Setup Wizard is displayed or not.

    Source: _inc/lib/admin-pages/class.jetpack-react-page.php:361

    jetpack_constant_default_value

    hook (filter): Filters the value of the constant.

    Source: vendor/automattic/jetpack-constants/src/class-constants.php:88

    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.

    Related to Modules:
    Source: modules/masterbar/masterbar.php:208

    jetpack_facebook_likebox_hide_cta

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

    Related to Modules:
    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: vendor/automattic/jetpack-connection/src/class-manager.php:737

    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