No new hooks added in 7.2.1 Below are recently added.

    rest_api_thumbnail_size_urls

    hook (filter): Filter the thumbnail URLs for attachment files.

    Source: class.json-api-endpoints.php:1332

    jetpack_connection_tests_loaded

    hook (action): Fires after loading default Jetpack Connection tests.

    Source: _inc/lib/debugger/class-jetpack-cxn-tests.php:33

    jetpack_business_hours_content

    hook (filter): Allows folks to filter the HTML content for the Business Hours block

    Source: extensions/blocks/business-hours/business-hours.php:84

    jetpack_photon_noresize_mode

    hook (filter): Allow Photon to disable uploaded images resizing and use its own resize capabilities instead.

    Source: class.photon.php:78

    jetpack_copy_post_row_actions

    hook (filter): Fires after the new Copy action has been added to the row actions.<p>Allows changes to the action presentation, or other final checks.</p>

    Source: modules/copy-post.php:328

    jetpack_copy_post_post_types

    hook (filter): Fires when determining if the "Copy" row action should be made available.<p>Allows overriding supported post types.</p> View Example

    Source: modules/copy-post.php:265

    jetpack_copy_post_data

    hook (filter): Fires just before the target post is updated with its new data.<p>Allows for final data adjustments before updating the target post.</p>

    Source: modules/copy-post.php:133

    jetpack_copy_post

    hook (action): Fires after all updates have been performed, and default content filters have been added.<p>Allows for any cleanup or post operations, and default content filters can be removed or modified.</p>

    Source: modules/copy-post.php:88

    jetpack_register_gutenberg_extensions

    hook (action): Fires before Gutenberg extensions availability is computed.<p>In the function call you supply, use <code>jetpack_register_block()</code> to set a block as available. Alternatively, use <code>Jetpack_Gutenberg::set_extension_available()</code> (for a non-block plugin), and <code>Jetpack_Gutenberg::set_extension_unavailable()</code> (if the block or plugin should not be registered but marked as unavailable).</p>

    Source: class.jetpack-gutenberg.php:350

    jetpack_set_available_extensions

    hook (filter): Filter the whitelist of block editor extensions that are available through Jetpack.

    Source: class.jetpack-gutenberg.php:234