* Various improvements:
    * Refactored Service Layer of the Magento_Tax Module
    * Stabilized functional tests for the Backend module
    * Stabilized functional tests for the CatalogRule module
    * Stabilized functional tests for the Checkout module
    * Stabilized functional tests for the CurrencySymbol module
    * Stabilized functional tests for the Shipping module
    * Stabilized functional tests for the Tax module
    * Stabilized functional tests for the User module
* Added Readme.md files to the following modules:
    * Magento\RequireJs
    * Magento\Ui
* Fixed bugs:
    * Fixed an issue where product image assignment to a store view was not considered when displaying a product
    * Fixed shipping address area blinking when billing address is filled during checkout with a virtual product
    * Fixed an issue where filter_store.html was not found
    * Fixed an issue where the customer account access menu did not expand on the storefront
    * Fixed an issue where CMS blocks did not open when clicking from a grid
    * Fixed an issue where the Create Product page was completely blocked after closing the New Attribute pop-up
    * Fixed an issue where Stock Status was disabled for Bundle and Grouped products
    * Fixed an issue where a product could not be saved without filling a not required bundle option
    * Fixed broken "per page" selectors on the Customer's account pages
    * Fixed the wrong behavior of JS loaders on the storefront pages
    * Fixed Shopping cart price rule form validation
    * Fixed an issue where the 'Please wait' spinner persisted when creating a customer custom attribute with existing code
    * Fixed a Google Chrome specific issue where subcategories were not displayed correctly on the first hover for category item
    * Fixed an issue where the 'Please wait' spinner did not disappear when creating customer with invalid email
    * Fixed an issue where the Username field auto-focus on admin login page revealed password in case of fast typing
    * Fixed an issue where Bundle Product original Price was not displayed in case of discount
    * Fixed wrong discount calculation for bundle options
    * Fixed an issue where wrong discount and total amounts were displayed on the order creation page when reordering an order with a bundle product in the Admin panel
    * Fixed an issue where admin tax notifications did not appear/disappear unless cache was flushed or disabled
    * Fixed an issue where catalog price and shopping cart price did not match when display currency was different from the base currency
    * Fixed an issue where Tax classes did not allow 'None' as a valid 'product tax class'
    * Fixed an issue where token-based authentication did not work if compilation was enabled
    * Fixed the sample code in index.php illustrating multi websites set up
    * Fixed commands in Setup CLI to match the ones displayed in help
    * Fixed an issue where searching by a part of a product name in Advanced Search did not give correct results
    * Fixed an issue where 404 page is displayed after Search Term mass deletion
    * Fixed an issue where Popular Search Terms were not displayed on the storefront
    * Fixed an issue where it was impossible to add Gift Message during one page checkout
    * Fixed an issue where the optional Postal code setting did not work correctly
    * Fixed an issue where product price details were missing in summary block in the shopping cart when the Back to shopping cart link was clicked on multishipping page
    * Fixed an issue where the 404 error page was displayed instead of the Index Management page after saving mass update
    * Fixed an issue where the "Out of Stock" message was not displayed for a bundle product when there was not enough of one of the associated products in stock
    * Fixed an issue with the Newsletters Report page in the Admin panel
    * Fixed an issue where Catalog price rule was not applying correct rates on specific products
    * Fixed an issue where a fatal error was thrown after clicking a link to a downloadable product
    * Fixed an issue a warning page for Grouped product with enabled MAP
    * Fixed an issue where a configurable product was not displayed in catalog product grid after updating with "Add configurable attributes to the new set based on current"
    * Fixed the inconsistent behavior in the integration tests for the Indexer functionality
    * Fixed an issue where the What's this? information tip link was not presented on product page with configured Minimum Advertised Price (MAP)
* Processed GitHub requests:
    * [#742](https://github.com/magento/magento2/issues/742) -- Admin notifications count overflow
    * [#720](https://github.com/magento/magento2/issues/720) -- https filedriver is not working
    * [#686](https://github.com/magento/magento2/issues/686) -- Product save validation errors in the admin don't hide the overlay
    * [#702](https://github.com/magento/magento2/issues/702) -- Base table or view not found
    * [#652](https://github.com/magento/magento2/issues/652) -- Multishipping checkout not to change the Billing address js issue
    * [#648](https://github.com/magento/magento2/issues/648) -- An equal (=) sign in the hash of the product page to to break the tabs functionality
* Service Contracts:
    * Refactored usage of new API of the Customer module
    * Implemented Service Contracts for the Sales module
    * Refactored Service Contracts for the Catalog module
    * Refactored Service Contracts for the Grouped module
* UI Improvements:
    * Implemented the Form component in Magento UI Library
    * Removed extra JS loaders for category saving
    * Improved the behavior of Categories management in the Admin panel
    * Implemented the keyboard navigation through HTML elements
    * Improved the HTML structure and UI of the Catalog Category Link, Catalog Product Link and CMS Static Block widgets
    * Added UI Library documentation
    * Fixed Blank & Luma themes UI bugs
    * Fixed footer alignment
    * Published the Luma theme and removed the Plushe theme
* Framework Improvements:
    * Added the ability to configure the list of loaded modules before installation
    * Merged SQL and Data Upgrades
    * Moved \Magento\TestFramework\Utility\Files to Magento Framework
* Setup tool improvements:
    * Removed duplication with Framework
    * Deployment configuration is refactored from XML format in local.xml to associated array in config.php
    * Improved performance
* Search improvements:
    * Integrated the Full Text Search library into the Layered Navigation functionality