No new hooks added in 9.6 Below are recently added.

    jetpack_is_standalone_block

    hook (filter): Returns true if the block is not being registered within a Jetpack plugin context.

    Source: vendor/automattic/jetpack-blocks/src/class-blocks.php:255

    jetpack_licensing_ui_enabled

    hook (filter): Filter that checks if the user is allowed to see the Licensing UI. `true` enables it.

    Source: vendor/automattic/jetpack-licensing/src/class-licensing.php:250

    jetpack_pre_connection_jitms

    hook (filter): Allows filtering of the pre-connection JITMs.<p>This filter allows plugins to add pre-connection JITMs that will be displayed by the JITM package.</p>

    Source: vendor/automattic/jetpack-jitm/src/class-pre-connection-jitm.php:33

    jetpack_podcast_helper_list_quantity

    hook (filter): Allow requesting a specific number of tracks from SimplePie's `get_items` call.<p>The default number of tracks is ten.</p>

    Source: _inc/lib/class-jetpack-podcast-helper.php:186

    jetpack_display_jitms_on_screen

    hook (filter): Filter to hide JITMs on certain screens.

    Source: vendor/automattic/jetpack-jitm/src/class-jitm.php:91

    paywall_filter

    hook (filter): Filter the Jetpack_Token_Subscription_Service class.

    Source: extensions/blocks/premium-content/_inc/subscription-service/include.php:50

    earn_get_user_subscriptions_for_site_id

    hook (filter): Filter the subscriptions attached to a specific user on a given site.

    Source: extensions/blocks/premium-content/_inc/subscription-service/class-token-subscription-service.php:90

    jetpack_earn_remove_cache_headers

    hook (action): Fires when a visitor can view protected content on a site.

    Source: extensions/blocks/premium-content/_inc/access-check.php:103

    jetpack_calypsoify_override_nav

    hook (filter): Filters whether Calypsoify should override the navigation.

    Source: modules/calypsoify/class.jetpack-calypsoify.php:103

    jetpack_admin_menu_use_calypso_links

    hook (filter): Whether links should point to Calypso or wp-admin.<p>Options: true - Calypso. false - wp-admin.</p>

    Related to Modules:
    Source: modules/masterbar/admin-menu/class-admin-menu.php:93