Jetpack is one of the best plugins of the wordpress. Jetpack has published its review of the year 2017. according to this review, Jetpack has shipped twelve major releases (once a month) in the past year. Major contributions of the Jetpack of this year are:
Rebuilt VideoPress from the ground up
Overhaul of the settings interface
Redesigned the hugely popular contact form
More than a hundred free WordPress themes
Unlimited premium themes
Social media scheduling
Beta version of Elasticsearch-powered search
Monetization tools like PayPal payments and high-quality ads
and much more like,
Google Analytics integration is now a breeze for Professional plan customers
PayPal for plan purchases
full support for Android users on the WordPress.com app
full WordPress 4.9 compatibility
ecommerce tracking for WooCommerce users