Jetpack by WordPress.com

Jetpack by WordPress.com is actually a collection of smaller plugins, all packed into one big tool.

Once installed, a special tab will appear under the Dashboard where admins can go and activate the features they like (individually).

After activating a feature, a configuration button will appear, which the admin can use to add customized settings for that feature.

Installation:

Unpack and upload it to the /wp-content/plugins/ directory.

Activate the plugin through the 'Plugins' menu in WordPress.

What is new in this release:

• Fixed stored XSS in Jetpack

What is new in version 3.9.2:

• Bug Fix:
• Changes Facebook share count endpoint.

What is new in version 3.9.1:

• Bug Fix:
• Changes Facebook share count endpoint.

What is new in version 3.6.1:

• Bug Fix:
• Changes Facebook share count endpoint.

What is new in version 3.5.3:

• Bug Fix:
• Changes Facebook share count endpoint.

What is new in version 3.4.1:

• Bug Fix:
• General: Modules not displaying properly in non-English installs.
• Manage: Some installs showing a transient fatal error.
• Protect: Protect module not auto-activating for users who upgrade.
• Omnisearch: Some installs not properly reporting WP version number, causing Omnisearch error.
• Stats: Top posts/pages widget not loading.
• Contact Info Widget: Fix conflict with Avada theme.

What is new in version 3.3.2:

• Enhancement:
• Updated translation files.
• Heartbeat: Correctly stat new datasets.
• Bug Fixed:
• Widget Visibility: Correct some caching of visibility results that may get evaluated too soon.
• Contact Form: Hardening.
• Photon: Make sure our gallery filter can parse array inputs as well as the default HTML.

What is new in version 3.3:

• Enhancement:
• Adds responsive video support to BuddyPress.
• Custom Content Types: Added 'order' and 'orderby' options to portfolio shortcode.
• Display notice when Jetpack Development Mode is on.
• General: Update compatibility with Twenty Fifteen.
• Image URL can now be overwritten with the jetpack_images_fit_image_url_override filter after dimensions are set by Photon.
• JSON API: Add Endpoint for trigger Plugin Autoupdates.
• JSON API: General Improvements. Documentation on http://developer.wordpress.com/
• Likes: Updated the code to accept arbitrary CPTs.
• Related Posts: Allow filter by post_format.
• Sharing: add new jetpack_sharing_counts filter for option to turn off sharing counts.
• Sharing: Use the Site Logo Theme Tool and the Site Icon as fallbacks for image tags.
• Shortcodes: Made the code more readable by using output buffers instead of string concatenation.
• Site Logo: Add alias functions to provide backward compatibility for themes expecting the old function calls.
• Slideshow: Add title and alt text to images.
• Subscription Form: Do not display the logged in user's email address by default.
• Top Posts Widget: Refactor to allow conditional loading of the css.
• Top Posts: Add jetpack_top_posts_widget_count filter to control number of displayed posts.

What is new in version 3.2.1:

• Enhancement:
• Updated translation files.
• JSON API: More object vars passed back to some queries.
• Bug Fix:
• JSON API: Pass back correct author in me/posts data.
• JSON API: Don't check if a post is freshly pressed on remote Jetpack sites where the function doesn't exist.
• Site Logo: Add backward-compatible template tags to match the standalone release.
• Don't use DIR -- it's 5.3+ only, and WordPress supports back to 5.2.
• Retool how we remove the source styles when using the concatenated version.
• Shortcodes: TED: Correct default language code from eng to en.
• Gallery Widget: Add a default background color.
• Subscription Notifications: Remove the label.

What is new in version 3.2:

• Enhancements:
• Speed Improvements (woohoo!).
• Add site icons: an avatar for your blog.
• Improvements to API endpoints.
• Add oEmbed sources (Twitter, SoundCloud, Instagram, DailyMotion, Vine).
• Add indicators to make it easier to see which modules are active.
• Add custom post type: Testimonials.
• Improve debug tool.
• Add new 'Site Logos' code to theme tools, for themes that opt in to support it.
• Improved caching for related posts.
• Added "Remember Me" functionality to Single Sign On.
• Improved accessibility.
• Added additional filters to Widget Visibility.
• Bug Fixes:
• Fixed PHP Notice errors for Likes, Widget Visibility.
• Improved RTL on VideoPress admin.
• Removed Google+ module (discontinued by Google).
• Fixed use of deprecated function in mobile theme.
• Various fixes to Tiled Galleries.
• Various fixes to Contact Form.
• Various fixes to oEmbed.
• Various fixes to Single Sign On.
• Fixed styles in ShareDaddy.
• Better match protocols (http/https) to the site.

What is new in version 3.1:

• Enhancement:
• New Custom Content Types module.
• New Jetpack Logo.
• New optional JSON API endpoints for viewing updates and managing plugins and themes.
• New Custom Post Type: Portfolio!
• Rearranged buttons on the modules modals for easier management.
• Jetpack Settings have improved keyboard accessibility.
• Improved RTL support for After the Deadline, Carousel, Contact Form, Comics CPT, Custom CSS, Omnisearch, Publicize, Related Posts, Slideshow short code, Tiled Gallery, Widget-Visibility and Widgets Gallery.
• Contact Form: Add an "Empty Spam" option.
• i18n: Change the priority of where plugin_textdomain is hooked so that the plugins can better translate Jetpack.
• Monitor: Displays how often the site is checked for downtime.
• Shortcode: Added Mixcloud shortcode and oEmbed support.
• Social Links: Improved handling of customizer hooks in non-admin context.
• Stats: The smiley image is gone by default.

What is new in version 3.0.2:

• Bug Fix:
• Depreciated Akismet function called
• Removed PHP strict error on the mobile menu
• Calling developer mode is easier to do
• Categories tab works in languages other then English
• Contact form sends email that is not marked as spam
• Remove UI for Reblog settings.
• Enhancement:
• Updated Languages Files.
• Better settings link
• Make module categories filter more visible when active
• Link to the contact form

What is new in version 3.0:

• Enhancement:
• Many Infinite Scroll enhancements to improve performance
• Infinite Scroll will use your CPT's display name instead of "Older Posts"
• JSON API added /media/new endpoint
• Added filter to assign new default image for Open Graph tags
• New [jetpack-related-posts] shortcode to add Related Posts to page instead of default placement
• Added SSO option to turn off login form completely, to use WordPress.com login exclusively
• The [googlemaps] shortcode allows for Google Maps Engine
• YouTube shortcode allows HD playback
• Smoother, Faster Tiled Galleries!
• New languages! Use Jetpack in Irish, Fulah, and Tigrinya
• Bugfix:
• Use your browser's Back and Forward buttons when naviagating a Carousel
• Various Related Posts fixes and improvements for added flexibility
• WordPress 3.9: Restores ability to edit Contact Forms
• WordPress 3.9: Restores Gallery Widget compatability
• Ensure Markdown is kept when Bulk Editing posts
• Improved Jetpack's Multisite Network Admin page for networks with a large number of sites
• Ensure Sharing settings persist when Bulk Editing a post
• Various other shortcode improvements

What is new in version 2.9.3:

• Important security update.

What is new in version 2.9.1:

• Bugfixes:
• After the Deadline: Fix a Javascript glitch that could prevent publishing of posts.
• SSO: Disable the implementation of an option that had been removed before release. This would have only been an issue if a site administrator had enabled the module during an early beta of 2.9.

What is new in version 2.9:

• Added Multisite network functionality
• New Module:
• Related Posts
• Enhancement:
• Single Sign On
• Mixcloud shortcode and oEmbed
• Gist shortcode and oEmbed
• Modify Facebook Like Box widget to support new Facebook parameters
• Rolled the Push Notifications module into the Notes module
• Update kses with Markdown
• Adding keyboard accessibility to sharing buttons config page
• Pull WordPress testing bits from the new official git mirror at WordPress.org
• Bugfix:
• Widget Visibility
• Revisions box in Custom CSS
• Fix several bugs in the WordPress Posts Widget so that it correctly updates
• Limit Login Attempts no longer generates false positives from xmlrpc.
• Clear max_posts transient on theme switch.

What is new in version 2.8:

• New Module:
• Markdown
• Module Update:
• Jetpack Monitor

What is new in version 2.7:

• Enhancements:
• Google+ Publicize
• Add Cloudup as an oEmbed provider
• Subscriptions: Add subscribe_field_id filter to allow updated ids when using multiple widgets
• Infinite Scroll: TwentyFourteen Support
• Bug Fixes:
• Contact Form: Fix warning when form is called outside the loop
• Featured Content: Moving Settings to Customizer, provide option to set default tag as fallback, specify all supported post-types rather than just additional ones. Description Updates
• Featured Content: Compat with 'additional_post_types' theme support argument. Comment updates
• Featured Content: Make sure $term is an object before we treat it as one
• GlotPress: Merge with latest GlotPress
• Infinite Scroll: prevent Undefined index notice that can cause IS to fail when user has WP_DEBUG set to true

What is new in version 2.6:

• Custom CSS: replace Ace editor with Codemirror.
• Widgets: new "Display Posts" widget.
• WP-CLI: add commands to disconnect a site and manage modules.
• Contact Form: new filters, grunion_contact_form_field_html and grunion_should_send_email.
• Custom Post Types: new restaurant post type.
• Genericons: update to version 3.0.2.
• Infinite Scroll: many improvements and fixes.
• Likes: performance improvements.
• MP6: Jetpack icons are now compatible with WordPress 3.8.
• Open Graph: better descriptions, fallback images, and media extraction from video posts.
• Publicize: new background token tests for connected publicize services and display problems on settings sharing and add new post.
• Shortcodes: updated Bandcamp shortcode to support the tracklist and minimal attributes, as well as more artwork attribute values.
• Shortlinks: add Custom Post Type support.
• Subscriptions: add more ways to customize the subscriptions widget.

What is new in version 2.5:

• Improved sharing buttons display.
• Comment on your posts using Google+ to signin.
• Embed Google+ posts into your posts.
• Added event logging capabilities for debugging
• LaTeX is now available in dev mode
• Introduced gallery widget
• Added new module: VideoPress
• Updated identity crisis checker
• Tiled Gallery widget added
• Google +1 button changed to Google+ Share button, to avoid confusion
• Added check to ensure Google+ authorship accounts have disconnected properly

What is new in version 2.4:

• WordPress.com Connect (WPCC): New Module.
• Widget Visibility: New Module.
• Shortcode: Addition of new Twitter Timeline shortcode.
• Shortcode: Addition of new Presentation shortcode.
• Shortcode: Addition of new Vine shortcode.
• Custom Post Types: CPTs are available.
• Subscriptions: Add 'jetpack_is_post_mailable' filter.
• OpenGraph: Add Twitter Cards meta tags as well.
• Custom CSS: Update lessc and scssc preprocessors to 0.4.0 and 0.0.7 respectively.
• Omnisearch: Add Media results.
• Likes: Use a protocol-agnostic iframe, instead of forced HTTPS.
• Top Posts: Increase post limit.
• Publicize: Updated JS and UI.

What is new in version 2.3.3:

• Enhancement:
• New Facebook Sharing icons.
• Minor update to the Minileven stylesheet.

What is new in version 2.3.2:

• Bug Fix:
• An issue where Facebook Pages were not available when connecting a Publicize account.
• For some web hosts, fixed an issue where 'Jetpack ID' error would occur consistently on connecting to WordPress.com.
• Enhancement:
• Adding some new stats and heartbeat checking to Jetpack.

What is new in version 2.3:

• Enhancement:
• It's now easier to find out if a module is active or note, thanks to the new Jetpack::is_module_active()
• Contact Form: You are now able to customize the submit button text thanks to the submit_button_text parameter
• Comments: We've added a filter to let users customize the Comment Reply label, and users can now also customize the prompt on the comment form again.
• Mobile Theme: Add genericons.css and registering it so it's easily accessible to other modules that may want it
• Tiled Galleries: You can now customize the captions, thanks to the jetpack_slideshow_slide_caption filter
• Widgets: Twitter Timeline: Add the noscrollbar option
• Widgets: Facebook Like Box Widget: add a show_border attribute
• Widgets: FB Like Box: let Jetpack users override the iframe background color set in an inline style attribute by using the jetpack_fb_likebox_bg filter
• Bug Fix:
• Bandcamp: Updates to the Bandcamp shortcode
• Stats: Fix missing function get_editable_roles on non-admin page loads
• Widgets: Twitter Timeline: Fix HTML links in admin; set default values for width/height; change some of the sanitization functions
• Widgets: Top Posts Widget: Exclude attachments
• Widgets: Top Posts Widget: fix data validation for number of posts
• PHP warnings non-static method called dynamically
• Fixed an issue in image extraction from HTML content
• Open Graph: Change default minimum size for og:image too 200x200
• Note:
• The old Twitter widget was removed in favour of Twitter Timeline widget
• Add is_module_active() to make it easier to detect what is and what isn't
• Compressing images via lossless methods
• Tidying up jetpack's CSS
• Set the max DB version for our retina overrides that were meant to stop for WordPress 3.5

What is new in version 2.2.5:

• Bug Fix:
• Update the method for checking Twitter Timeline widget_id and update coding standards
• Custom CSS: Allow the content width setting to be larger than the theme's content width
• Custom CSS: Fix possible missing argument warning.

What is new in version 2.2.2:

• Enhancement:
• Mobile Theme: Add controls for custom CSS.
• Sharing: Add Pocket to the available services.
• Bug Fixes:
• Custom CSS: Update the method for generating content width setting.
• JSON API: Security updates.
• Likes: Add settings for email notifications and misc style updates.
• Notifications: Add the post types to sync after init.
• Publicize: RTL styling.
• Shortcodes: security fixes and function prefixing.
• Widgets: Update wording on the Top Posts widget for clarity.

What is new in version 2.2.1:

• Enhancement:
• Development Mode: Define the JETPACK_DEV_DEBUG constant to true to enable an offline mode for localhost development. Only modules that don't require a WordPress.com connection can be enabled in this mode.
• Likes: Added the number of likes to the wp-admin/edit.php screens.
• Mobile Theme - design refresh
• Shortcodes - Add a filter to the shortcode loading section so that a plugin can override what Jetpack loads for shortcodes
• Widgets - Filter Jetpack's widgets so that a plugin can control which widgets get loaded

What is new in version 2.2:

• Likes: Allow your readers to show their appreciation of your posts.
• Shortcodes: SoundCloud: Update to version 2.3 of the SoundCloud plugin (HTML5 default player, various fixes).
• Shortcodes: Subscriptions: Add a shortcode to enable placement of a subscription signup form in a post or page.
• Sharedaddy: Allow selecting multiple images from a post using the Pinterest share button.
• Contact Form: Allow feedbacks to be marked spam in bulk.
• Widgets: Readmill Widget: Give your visitors a link to send your book to their Readmill library.

What is new in version 2.1.1:

• Fix for an error appearing for blogs updating from Jetpack 1.9.2 or earlier to 2.1.

What is new in version 2.0:

• Publicize: Connect your site to popular social networks and automatically share new posts with your friends.
• Post By Email: Publish posts to your blog directly from your personal email account.
• Photon: Images served through the global WordPress.com cloud.
• Infinite Scroll: Better/faster browsing by pulling the next set of posts into view automatically when the reader approaches the bottom of the page.
• Open Graph: Provides more detailed information about your posts to social networks.
• JSON API: New parameters for creating and viewing posts.
• Improved compatibility for the upcoming WordPress 3.5.

What is new in version 1.8.2:

• Bug Fix:
• Widgets: Fix CSS that was uglifying some themes (like P2).
• Widgets: Improve Top Posts and Pages styling.
• Custom CSS: Make the default "Welcome" message translatable.
• Fix Lithuanian translation.

What is new in version 1.8:

• Enhancements:
• Mobile Theme: Automatically serve a slimmed down version of your site to users on mobile devices.
• Multiuser: Allow multiple users to link their accounts to WordPress.com accounts.
• Custom CSS: Added support for object-fit, object-position, transition, and filter properties.
• Twitter Widget: Added Follow button
• Widgets: Added Top Posts and Pages widget
• Mobile Push Notifications: Added support for mobile push notifications on new comments.
• VideoPress: Shortcodes now support the HD option, for default HD playback.
• Bug Fixes:
• Twitter Widget: Fixed tweet permalinks in the Twitter widget
• Custom CSS: @import rules and external images are no longer stripped out of custom CSS
• Custom CSS: Fixed warnings and notices displayed in debug mode
• Sharing: Fixed double-encoding of image URLs

What is new in version 1.7:

• Enhancement:
• CSS Editor: Customize your site's design without modifying your theme.
• Comments: Submit the comment within the iframe. No more full page load to jetpack.wordpress.com.
• Sharing: Share counts for Twitter, Facebook, LinkedIn
• Sharing: Improve styling
• Sharing: Add support for ReCaptcha
• Sharing: Better extensability through filters
• Widgets: Twitter: Attempt to reduce errors by storing a long lasting copy of the data.
• Regression Fix:
• Sharing: Properly store and display the sharing label option's default value.
• Bug Fix:
• Contact Form: remove worse-than-useless nonce.
• Subscriptions: remove worse-than-useless nonce.
• Sharing: Don't show sharing buttons twice on attachment pages.
• Sharing: Increase width of Spanish Like button for Facebook.
• Sharing: Use the correct URL to the throbber.
• Stats: Fix notice about undefined variable $alt
• Subscriptions: Make Subscriptions module obey the settings of the Settngs -> Discussion checkboxes for Follow Blog/Comments
• Shortcodes: VideoPress: Compatibility with the latest version of VideoPress
• Shortcodes: Audio: Include JS File for HTML5 audio player
• Hovercards: Improve cache handling.
• Widgets: Gravatar Profle: Correctly display service icons in edge cases.
• Widgets: Gravatar Profle: Prevent ugly "flash" of too-large image when page first loads on some sites

What is new in version 1.6.1:

• Bug Fix:
• Prevent Fatal error under certain conditions in sharing module.
• Added cachebuster to sharing.css.
• Disable via for Twitter until more robust code is in place.

What is new in version 1.5:

• Added Gallery Carousel feature.

What is new in version 1.4.1:

• Added checkboxes and logic control for the Subscription checkboxes.

What is new in version 1.3.1:

• Enhancement:
• Added a new widget, the Facebook Likebox
• Bug Fixes:
• Sharing: Sharing buttons can now be used on custom post types.
• Contact Forms: Make Contact Forms widget shortcode less aggressive about the shortcodes it converts.
• Ensure contact forms are parsed correctly in text widgets.
• Connection notices now only appear on the Dashboard and plugin page.
• Connection notices are now dismissable if Jetpack is not network activated.
• Subscriptions: Fix an issue that was causing errors with new BuddyPress forum posts.

What is new in version 1.3:

• Enhancement:
• Added Contact Forms feature. Formerly Grunion Contact Forms.
• Bugs Fixed:
• Tweak YouTube autoembedder to catch more YouTube URLs.
• Correctly load the Sharing CSS files.

What is new in version 1.2.4:

• Bug Fix:
• Fixed rare bug with static front pages.

What is new in version 1.2.2:

• Bug Fix: Ensure expected modules get reactivated correctly during upgrade.
• Bug Fix: Don't send subscription request during spam comment submission.
• Bug Fix: Increased theme compatibility for subscriptions.
• Bug Fix: Remove reference to unused background image.

What is new in version 1.2.1:

• Bug Fix:
• Ensure Site Stats menu item is accessible.
• Fixed errors displayed during some upgrades.
• Fix inaccurate new modules "bubble" in menu for some upgrades.
• Fix VaultPress detection.

What is new in version 1.1.3:

• Bug Fix: Increase compatibility with WordPress 3.2's new wp_remote_request() API.
• Bug Fix: Increase compatibility with Admin Bar.
• Bug Fix: Stats: Improved performance when creating new posts.
• Bug Fix: Twitter Widget: Fix PHP Notice.
• Bug Fix: Sharedaddy: Fix PHP Warning.
• Enhancement: AtD: Add spellcheck button to Distraction Free Writing screen.
• Translations: Added: Bosnian, Danish, German, Finnish, Galician, Croatian, Indonesian, Macedonian, Norwegian (Bokmal), Russian, Slovak, Serbian, Swedish
• Translations: Updated: Spanish, French, Italian, Japanese, Brazilian Portuguese, Portuguese

What is new in version 1.1.2:

• Bug Fix: Note, store, and keep fresh the time difference between the Jetpack site's host and the Jetpack servers at WordPress.com. Should fix all "timestamp is too old" errors.
• Bug Fix: Improve experience on hosts capable of making outgoing HTTPS requests but incapable of verifying SSL certificates. Fixes some "register_http_request_failed", "error setting certificate verify locations", and "error:14090086:lib(20):func(144):reason(134)" errors.
• Bug Fix: Better fallback when WordPress.com is experiencing problems.
• Bug Fix: It's Jetpack, not JetPack :)
• Bug Fix: Remove PHP Warnings/Notices.
• Bug Fix: AtD: JS based XSS bug. Props markjaquith.
• Bug Fix: AtD: Prevent stored configuration options from becoming corrupted.
• Bug Fix: Stats: Prevent missing old stats for some blogs.
• Bug Fix: Twitter Widget: Fix formatting of dates/times in PHP4.
• Bug Fix: Twitter Widget: Cache the response from Twitter to prevent "Twitter did not respond. Please wait a few minutes and refresh this page." errors.
• Enhancement: Slightly improved RTL experience. Jetpack 1.2 should include a much better fix.
• Enhancement: Sharedaddy: Improve localization for Facebook Like button.
• Enhancement: Gravatar Hovercards: Improved experience for Windows browsers.

What is new in version 1.1.1:

• Bug Fix: Improve experience on hosts capable of making outgoing HTTPS requests but incapable of verifying SSL certificates. Fixes most "Your Jetpack has a glitch. Connecting this site with WordPress.com is not possible. This usually means your site is not publicly accessible (localhost)." errors.
• Bug Fix: Sharedaddy: Fatal error under PHP4. Disable on PHP4 hosts.
• Bug Fix: Stats: Fatal error under PHP4. Rewrite to be PHP4 compatible.
• Bug Fix: Stats: Fatal error on some sites modifying/removing core WordPress user roles. Add sanity check.
• Bug Fix: Stats: Replace debug output with error message in dashboard widget.
• Bug Fix: Stats: Rework hook priorities so that stats views are always counted even if a plugin (such as Paginated Comments) bails early on template_redirect.
• Bug Fix: Identify the module that connot be activated to fatal error during single module activation.
• Bug Fix: glob() is not always available. Use opendir(), readdir(), closedir().
• Bug Fix: Send permalink options to Stats Server for improved per post permalink calculation.
• Bug Fix: Do not hide Screen Options and Help links during Jetpack call to connect.
• Bug Fix: Improve readablitiy of text.
• Bug Fix: AtD: Correctly store/display options.
• Enhancement: Output more informative error messages.
• Enhancement: Improve CSS styling.
• Enhancement: Stats: Query all post types and statuses when getting posts for stats reports.
• Enhancement: Improve performance of LaTeX URLs be using cookieless CDN.

Requirements:

• WordPress 3.6 or higher

Limitations:

• Some features may require a WordPress.com account.