Jetpack by WordPress.com was updated to version 3.9.2, from version 3.9.1. Changelog:

• Beautiful Math: fix XSS vulnerability when parsing LaTeX markup within HTML elements.
• Contact Form: do not save private site credentials in post meta.
• Contact Info: Added two hooks for adding arbitrary information to the widget.
• Development: Added new possibilities for REST API debugging.
• Embeds: Added Codepen embeds support.
• Embeds: Added Sketchfab embeds support.
• I18n: Added support for translation packages for the Finnish language.
• Markdown: Added a filter to enable skipping processing of developer supplied patterns.
• Related Posts: Added a filter to change heading markup.
• Staging: Added a constant to force staging mode.
• Staging: Added a notice to make staging mode more obvious.
• Top Posts Widget: Added a new (jetpack_top_posts_widget) shortcode.
• Custom Post Types: Nova: Fixed a JavaScript bug on adding multiple items.
• Embeds: Allowing embeds from Instagram with a www in an URL.
• General: Fixed untranslated module names on the Settings screen.
• General: Improved module descriptions and fixed misleading or broken links in descriptions.
• General: No more notices on module deprecation on older installations.
• General: Only showing one prompt to enable Photon when uploading several new images.
• Multisite: Fixed a problem with site lists for older WordPress installations.
• OpenGraph: Fixed a bug to properly fallback to a WordPress Site Icon image.
• Photon: Improve performance for images over a secure connection.
• Photon: No longer including links from data attributes.
• Publicize: Fixed problems for en_AU and en_CA locales with Facebook.
• Related Posts: Fixed a notice on certain requests.
• Site Logo: It’s no longer possible to choose a non-image.
• Widget Visibility: No longer confusing page IDs and titles in certain cases.