* Tax calculation updates:
 * Fixed issues in tax calculation rounding with discount applied
 * Fixed an issue with extra penny  when exact tax amount ended with 0.5 cent
 * Fixed an issue where there were tax calculation errors when customer tax rate was different from store tax rate
 * Added support to round tax at individual tax rate
 * Fixed price inconsistencies between catalog and shopping cart
 * Added support for maintaining consistent price including tax for customers with different tax rates
 * Added support for applying tax rules with different priorities to subtotal only
* Fixed bugs:
  * Removed the extra '%' sign in the error\notice message on Gift Card Accounts page on the backend
  * Fixed an issue with image uploading functionality in the Catalog configuration
  * Fixed an issue where a customer could not navigate the store when downloading the downloadable product
  * Fixed an issue where adding CMS block Catalog Events Lister caused an error
  * Fixed an issue where the price was displayed twice on the Product page on the frontend
  * Fixed an issue where an admin could not open search results on the backend
  * Fixed an issue where the Rule Based Product Relations functionality was generating incorrect SQL when product category attribute was set through "is one of" or "contains" operator by constant value
  * Fixed an issue where it was impossible to add a product to the Compare list for  categories with three-column page layout
  * Fixed an issue where a blank page opened when changing store view on a product page on the frontend
  * Fixed an issue where the  "Please specify at least one search term." error message was not displayed if search is performed without search data specified on the frontend
  * Fixed a Google Chrome specific issue where page layout was broken when updating status for reviews on the backend
  * Fixed admin look and feel issues
  * Fixed an issue where the order notices and error messages were not red
  * Fixed a UI issue which appeared during custom attribute creation
  * Fixed an issue where the popup did not open after clicking What's this? next to the Remember Me check box  when persistent shopping cart was enabled
  * Fixed an issue where the options of the Add Product split dropdown did not fit the page
  * Fixed an issue where the default theme preview image sample link was missing
  * Fixed a Safari and Internet Explorer 9 specific issue where the backend menu is not displayed for users with custom admin roles
  * Fixed an issue where  the price of bundle products was not  displayed correctly on the product page on the frontend
  * Fixed a UI issue in the debug mode configuration
  * Fixed minor issues with page layout
  * Fixed an issue where the mini shopping cart loaded data from cache
  * Fixed an issue where there was an incorrect value in the Grand Total (Base) column in the Orders grid if Catalog Price Scope was set to Website
  * Fixed an issue where the Entity Generator tool did not accept the "class" parameter
  * Fixed an issue where the default email template was not applied when the custom template in use was deleted
  * Fixed an issue where shipping price for flat rate was set to 0 in the side block during checkout of a product with a configured recurring profile
  * Fixed an issue where it was possible to create more Shipping Labels than there were products in the shipment
  * Fixed an issue where data about "SHA-IN Pass Phrase" was missing after changing "Payment Action" in the Ogone payment method configuration
  * Fixed performance issues with reindexing of the Price indexer
  * Fixed an issue where importing tax rates with postal code = * led to incorrect data entered into database
  * Fixed an issue where incorrect link to reset password was sent if secure URL was used on the frontend
  * Fixed an issue where the Links section was absent while editing downloadable products from the Wishlist
  * Fixed an issue where specified details for composite products were lost after adding to Gift Card and Downloadable products to the Wishlist
  * Fixed and issue where the Date widget was set to incorrect date when creating a new customer
  * Fixed an issue where a customer was redirected to Dashboard if the Redirect user to dashboard after login option was set to No
  * Fixed an issue where a customer was not able to register during checkout if Guest Checkout was not allowed
  * Fixed an issue where System logs were not generated properly in integration tests
  * Fixed benchmarking script
  * Fixed an issue where it was impossible to put store to the maintenance mode during backup
  * Fixed insecure use of mt_rand()
  * Fixed an issue where Quoted price was displayed incorrectly from the shopping cart in the backend
* Functional tests:
  * Tax Rule Creation
  * Admin User Roe Creation
  * Simple Product Creation
  * Customer Group Creation
  * Update Backend Customer
  * Newsletter Creation
* Updated composer.json.dist to download and install MTF from Public GitHub repository
* GitHub requests:
  * [#542] (https://github.com/magento/magento2/pull/542) Fix ImportExport bug which occurs while importing multiple rows per entity
  * [#507] (https://github.com/magento/magento2/issues/507) "Insert Image" window is overlapped on menu

* Fixed bugs:
  * Fixed an issue where a blank page was displayed when changing store view on a product page
  * Fixed an issue where it was impossible to change attribute template during product creation
  * Fixed an issue where the Categories field and the New Category button was displayed during product creation for users with no permissions to access Products and Categories
  * Fixed an issue where no records were found in the User Roles grid if no users were assigned to a role
  * Fixed an issue where variable values in the Newsletter templates were not displayed
  * Fixed an issue where 'No files found' was displayed in the JS Editor on the Design page
  * Fixed an issue where the State/Province list on frontend was displayed with HTML tags if inline translate was enabled
  * Fixed an issue where CAPTCHA was not displayed on the Contact Us page
  * Fixed an issue where scheduled backups were not displayed and neither performed
  * Fixed functional tests failing PSR-2 test

* Themes update:
  * Blank theme was refactored to implement the mobile-first approach
* Fixed bugs:
  * Fixed an issue where it was impossible to place order using store credit
  * Fixed an issue where adding products with custom options from a wishlist to shopping cart caused an error
  * Fixed an issue where it was impossible to add a product to the shopping cart from the Wishlist sidebar
  * Fixed an issue where the Add to Wishlist drop-down arrow was missed on the category page on the frontend
  * Fixed an issue where it was impossible to manage multiple wishlists on the frontend if FPC was disabled
  * Fixed an issue where prices with taxes were not displayed on the category and product pages on the frontend
  * Fixed an issue where it was impossible to store cache when using either Varnish or built-in cache
  * Fixed an issue where all refactored indexers were in the REINDEX REQUIRED status after installation
  * Fixed an issue where admins with limited access could perform operations not allowed by role permissions
  * Fixed an issue where http links were generated instead of https links
  * Fixed an issue where it was impossible to use Subcategories when building a condition for a catalog price rule
  * Fixed an issue where a registered customer could not place an order using PayPal Payments Advanced
  * Fixed an issue where PayPal Settlement report was empty
  * Fixed an issue where a newly created subcategory was still active after switching to the Default category
  * Fixed an issue where it was impossible to save changes or remove a customer address on the backend
  * Fixed an issue where for an admin with restricted permissions previewing a newsletter template caused a fatal error
  * Fixed an issue where it was impossible to save a Tax Rate if specified that Zip was a range, and the Zip/Post Code field was left empty
  * Fixed an issue where Puerto Rico was listed both as a state and as a country
  * Fixed an issue where the Special Price was displayed instead of the place of Original Price in the Items Ordered column if the orders list.
  * Fixed an issue in Widget configuration where category check boxes did not stay selected when Anchor Categories were specified in the Display On drop-down list.
  * Fixed an issue where admin user password confirmation was not validated on the server side
  * Fixed an issue where adding a customer review caused an error
  * Fixed an issue where the incorrect error messages were displayed if an invalid email was entered during admin user or customer creation
  * Fixed an issue with the Debug section in developer settings, which should only be displayed for the website or store view scope level
  * Fixed an issue where the fatal error was displayed after uninstall if during installation it was specified to save session in the database
  * Fixed an issue where a wrong error message was displayed when a non-existing database was specified when installing Magento using the console install script
  * Fixed an issue where it was impossible to add products from a wishlist to a shopping cart
  * Fixed an issue where an error appeared after Magento installation
  * Improved the Blank theme UI
  * Fixed an issue with a zooming product image overlapped by category design on the frontend
  * Fixed an issue where it was impossible to select only billing or only shipping address when editing the user address on the frontend
  * Fixed an issue where it was impossible to view a Wishlist in the Wishlist Search widget
  * Fixed an issue where partial cache invalidation did not work for built-in caching
  * Fixed an issue where it was impossible to find a catalog event using the Countdown Ticker grid filter if the event had been specified to be displayed on both category and product pages
  * Fixed incorrect error messages displayed during customer registration
  * Fixed an issue where product attributes from other store views were displayed for products in a Wishlist
  * Fixed an issue where it was impossible to place an order without the CheckoutAgreements module
  * Fixed an issue where the Media Image attribute type was not available when creating the product attribute
  * Fixed an issue with incorrect label attribute for the State/Province drop-down list on the Shipping Information tab
  * Fixed an issue where using only digits in the SKU field of configurable products led to a confusing behavior
  * Fixed an issue where a catalog price rule was not shown on the catalog and product pages on the frontend
  * Fixed an issue where Recurring Profiles (payments) were available on the frontend for any registered user who had the URL
  * Fixed an issue where a credit card frame was absent on the Payment Information step of Onepage Checkout, if there was only one payment method with a credit card available
  * Fixed an issued where it was impossible to use inline translate for the My Account and Register links on the frontend
  * Fixed an issue where it was impossible to activate a customer using REST
  * Fixed an issue with the undefined version_compate method called in \lib\Magento\Connect\Validator.php
  * Fixed an issue with invalid XML formatting of Boolean in REST response
  * Fixed an issue where it was impossible to perform installation using index.php from the pub folder (problem with JS and CSS)
  * Fixed an issue where the Multiple Wishlist functionality did not work correctly with enabled Full Page Cache in the Chrome browser
  * Fixed an issue where it was impossible to change an admin frontname using console installation
  * Fixed an exception on the Transaction page when searching by payment method
  * Fixed an issue where the "Add to wishlist" link was displayed in catalog even when the Wishlist functionality was disabled
  * Fixed an issue where the system was broken if an admin user unassigned his own role
  * Fixed an issue with exceptions thrown on attempt to export products for users with store-level restrictions
  * Fixed an issue where two loaders were displayed when saving a category
  * Fixed an issue where it was impossible to search for a newsletter in the Newsletter grid
  * Fixed an issue where the displayed currency and product price were not changed after switching to a new currency
  * Fixed an issue with frontend crashing when deleting a product from a mini shopping cart
  * Fixed an issue where it was impossible to add a bundle product to a shopping cart
  * Fixed an issue where a configurable product base image disappeared when selecting product variations
* Functional tests:
  * Functional end-to-end tests publication
     * Bundle product
     * Category
     * Customer
     * Configurable product
     * Downloadable product
     * Newsletter
     * Review
     * Simple product
     * Sitemap
     * Store
     * Tax Rule
     * User
     * Virtual product
* Service layer updates:
  * Move CurrentCustomerService from Service to Helper
* GitHub requests:
  * [#544] (https://github.com/magento/magento2/issues/544) Performance tests not working
  * [#554] (https://github.com/magento/magento2/pull/554) Performance tests - Fix jmeter output format
  * [#525] (https://github.com/magento/magento2/pull/525) Fix typo in FS Generator help message
  * [#563] (https://github.com/magento/magento2/issues/563) Admin Login not working #563

* Pricing improvements:
  * Eliminated code duplication from templates and implemented new calculation models for the following modules:
     * ConfigurableProduct
     * Wishlist
     * Rss
     * ProductAlert
* JavaScript improvements:
  * Removed head.js usages from frontend
  * Removed head.js usages from adminhtml
* Themes update:
  * Plushe styles are removed, Plushe theme is now based on blank
* Fixed bugs:
  * Unable to place order with product that contains custom option 'file'
  * OnePageCheckout is not working if PayPal method is enabled to work via Payment Bridge
  * Impossible to reset password for admin user (incorrect reset password link in email)
  * Errors when deleting customer group specified as default one in the config
  * A number of essential buttons do not work and block other functionality in Internet Explorer 10
  * "Insert Widget" button is missing in Insert Widget popup while creating CMS page
  * Impossible to change status for rating in admin
  * System email templates are not loaded when user creates new email template
  * Billing Agreements tab displays during New Customer creation in admin panel
  * Images are not displayed in WYSIWYG when editing default pages
  * Error message "Asymmetric transaction rollback" when creating simple product with flat catalog product option enabled in config
  * Fatal error when trying to preview sample(type=link) or view link for download(type="link") for downloadable product
  * Customer is redirected to Home Page after adding new address during multiple address checkout if secure URLs are enabled for frontend in config
  * Impossible to select value in the State/Province field in the customer registration form when customer uses multiple address checkout
  * Manage Stock option is not editable when using mass action on several products in the admin panel
  * Category is not displayed in layered navigation block when Flat Catalog is enabled in config
* GitHub requests:
  * [#489] (https://github.com/magento/magento2/issues/489) -- PHPUnit 4.0 Compatibility
  * [#535] (https://github.com/magento/magento2/issues/535) -- Image management for products
* Framework improvements:
  * Covered Magento lib form elements with unit tests:
      * `lib/Magento/Framework/Data/Form/Element/AbstractElement.php`
      * `lib/Magento/Framework/Data/Form/Element/Button.php`
      * `lib/Magento/Framework/Data/Form/Element/Checkbox.php`
      * `lib/Magento/Framework/Data/Form/Element/CollectionFactory.php`
      * `lib/Magento/Framework/Data/Form/Element/Column.php`
      * `lib/Magento/Framework/Data/Form/Element/File.php`
      * `lib/Magento/Framework/Data/Form/Element/Hidden.php`
      * `lib/Magento/Framework/Data/Form/Element/Editablemultiselect.php`
      * `lib/Magento/Framework/Data/Form/Element/Factory.php`
      * `lib/Magento/Framework/Data/Form/Element/Image.php`
      * `lib/Magento/Framework/Data/Form/Element/Imagefile.php`
      * `lib/Magento/Framework/Data/Form/Element/Label.php`
      * `lib/Magento/Framework/Data/Form/Element/Link.php`
      * `lib/Magento/Framework/Data/Form/Element/Multiselect.php`
      * `lib/Magento/Framework/Data/Form/Element/Note.php`
      * `lib/Magento/Framework/Data/Form/Element/Obscure.php`
      * `lib/Magento/Framework/Data/Form/Element/Password.php`
      * `lib/Magento/Framework/Data/Form/Element/Radio.php`
      * `lib/Magento/Framework/Data/Form/Element/Reset.php`
      * `lib/Magento/Framework/Data/Form/Element/Submit.php`
      * `lib/Magento/Framework/Data/Form/Element/Text.php`
      * `lib/Magento/Framework/Data/Form/Element/Textarea.php`

* Modularity improvements:
  * Introduced a new CheckoutAgreements module. Moved all "Terms and Conditions" related logic from Magento_Checkout to Magento_CheckoutAgreements
  * Moved library related logic from `Magento\Core\Model\App`
* Fixed bugs:
  * Fixed an issue where Currency Options were not displayed on the Currency Setup tab
  * Fixed an issue where a fatal error appeared during customer registration if mail server was off
  * Fixed an issue where customer with middle name did not appear in the Customers grid in the backend
  * Fixed an issue where related products were not displayed on the product page in the backend
  * Fixed the broken View Files Population tool
  * Fixed an issue where Magento broke down if the Main Web Site was deleted
  * Fixed potential security issue with orders protect_code
  * Fixed an issue where an error appeared when placing an order if cache was turned on
  * Fixed an issue where a warning appeared when running system_config.php tool
  * Fixed an issue with incorrect reset password link for users on custom websites
  * Fixed an issue with invalid error message displayed when trying to save a customer group with existing group name
  * Fixed an issue with  menu layout non-responsive behavior  in the Blank theme
* Framework Improvements:
  * Covered Magento library components with unit tests
    * `Magento\Framework\Error\*`
    * `Magento\Framework\Event\Observer\*`
    * `Magento\Framework\Filesystem\*`
    * `Magento\Framework\Filesystem\File\*`
  * Updated the obsolete_classes list with changes, introduced by Offline Payment Methods Module implementation
  * Moved `lib/Magento/*` to `lib/Magento/Framework/*`
  * Covered Magento application components with unit tests:
     * `Store\Model\*`
     * `Sales/Helper/Guest.php`
     * `Sales/Helper/Admin.php`
     * `Sales/Model/Observer.php`
     * `Sales/Model/Payment/Method/Converter.php`
     * `Sales/Model/Email/Template.php`
     * `Sales/Model/Observer/Backend/CustomerQuote.php`
     * `Sales/Model/Status/ListStatus.php`
* Refactored the following modules to use Customer Service:
  * Magento_Persistent
  * Magento_GoogleShopping
  * Magento_ProductAlert
  * Magento_SendFriend
  * Moved customer-specific logic from the Magento_ImportExport module to the Customer module
  * Refactored the rest of Customer Group usages
  * Refactored customerAccountService::createAccount to not expose the hashed password input from webapi
  * Implemented a delimiter usage for Cache key in Customer Registry
* Customer Service usage:
  * Updated exception hierarchy with a new localized exception class
  * Updated CRUD APIs to support email and base URL instead of IDs
* JavaScript improvements:
  * Implemented the validation widget
  * Implemented the tooltip widget
  * Implemented the popup/modal window widget
  * Implemented the calendar widget
  * Implemented the suggest widget
* Added configuration for Travis CI

* Pricing Improvements:
  * Added price calculation component to library
  * Eliminated price calculation from blocks and templates and implemented new calculation models for the following product types:
     * Bundle
     * Simple/Virtual
     * Grouped
     * Downloadable
  * Resolved price calculation dependencies on the Tax and Weee modules
* Themes update:
  * Updated the look&feel of the Admin theme
* Fixed bugs:
  * Fixed an issue with the inability to save product with grouped price when Price Scope = Website
  * Fixed an issue with fatal error on attempt to edit product from wishlist in stores with multiple store views
  * Fixed an issue where it was impossible to add to a wishlist a product with custom quantity
  * Fixed an issue where JS validation was skipped during CMS page creation
  * Fixed an issue with the New Customer Address Attribute page and the New Customer Attribute page having the same title
  * Fixed an issue where a form was submitted two times during CMS page creation
  * Fixed an issue where a fatal error appeared when trying to edit product in a wishlist in stores with multiple store views
  * Fixed an issue with inability to change page layout for categories
  * Fixed an issue where the Quantity drop-down list box was disabled for bundle products
  * Fixed an issue where inactive Related Products rules were applied
  * Fixed a clickjacking vulnerability
  * Fixed bugs and added improvements in the Blank theme
  * Fixed an issue where the Flat Rate shipping method was not enabled by default
  * Fixed an issue with incorrect order of products on the Add Product split button
  * Fixed an issue with saving the tier price attribute value
  * Fixed an issue with creating integration from config file
  * Fixed an issue where the Cookie Restriction Mode = Yes configuration was not applied
  * Fixed an issue where it was impossible to perform ajax actions from backend grids in Internet Explorer
  * Fixed the improper usage of DIRECTORY_SEPARATOR
  * Fixed an issue where it was impossible to add new address on customer's account page if default address had been already set
  * Fixed an issue where setting memory_limit to -1 caused installation failure
  * Fixed an issue where the configuration of Admin Session Lifetime was not applied correctly
  * Fixed an issue where Scheduled Export was not performed if exporting to remote FTP server
  * Fixed the wrong default value for PHP memory_limit
  * Fixed an issue where frontend messages were not displayed when FPC was turned off
  * Fixed the position of page action buttons on the Categories page in the backend
  * Improved backend grids UI
* Framework Improvements:
  * Simplified Search related Data Objects
  * Moved lib/Magento/* to lib/Magento/Framework/*
    * Moved lib/Magento/App to lib/Magento/Framework/App
* Refactored the following modules to use Customer service:
  * PayPalRecurringPayment
  * RecurringPayment
  * Multishipping
  * Paypal
* Customer Service usage:
  * Implemented Service Context Provider
  * Restructured webapi.xml
  * Renamed createAccount to createCustomer in CustomerAccountService
  * Implemented Caching strategy for the Customer service
* GitHub requests:
  * [#488] (https://github.com/magento/magento2/issues/488) -- Converted several grids from Magento\Sales module to new layout XML config format

* Framework Improvements:
  * Eliminated the StoreConfig class, and ability to work with Configuration through the Store object. Scope Config was introduced instead.
  * Fixed performance degradation caused by DI argument processors
  * Covered Magento library components with unit tests:
     * Magento/App/Request
     * Magento/App/Resource directory and Magento/App/Resource.php
     * Magento/App/Response
     * Magento/App/Route
     * Magento/App/Router
     * Magento/App/Http.php
     * Magento/Translate.php
  * Improved the Web API framework based on Customer Service
  * Updated the API Service Exception Handling
  * Changed the conventional notation of Vendor name in theme path: from `app/design/<area>/<vendor>_<theme>` to `app/design/<area>/<vendor>/<theme>`
  * Renamed the 3DSecure library to CardinalCommerce, and removed the unused flex library
* Themes update:
  * Updated the look&feel of the Admin theme
* Modularity improvements:
  * Introduced a new Store module. Moved all Store related logic from Magento_Core to Magento_Store
  * Moved the library part of the Config component from the Magento_Core module to the library
  * Moved the Session related logic from the Magento_Core module to the library
  * Moved the abstract logic related to Magento "Module" from Magento_Core to the library
  * Moved the form key related functionality to the library
  * Introduced a new Magento_UrlRewrite module and moved related classes from Magento_Core to the new module
  * Moved the resource model to Magento_Install module
  * Eliminated the Core\Helper\Js class
  * Moved the Email related logic from Magento_Core module to Magento_Email module
  * Moved the Cache related logic from the Magento_Core module to the library
  * Resolved issues which appeared when an order had been placed before the Magento_Payment module was disabled
  * Eliminated Magento_Catalog dependency on Magento_Rating
  * Removed the Magento_Rating module, its logic moved to Magento_Review
  * Moved the View related components from Magento_Core to the Magento/View library
* Refactored the following modules to use Customer Service
  * Magento_Multishipping
  * Magento_Paypal
  * Magento_Log
  * Magento_RSS
  * Magento_Review
  * Magento_Wishlist
  * Magento_Weee
  * Magento_CatalogInventory
  * Magento_CatalogRule
  * Magento_SalesRule
* GitHub requests:
  * [#520] (https://github.com/magento/magento2/issues/520) -- Fixed spelling in Magento\Payment\Model\Method\AbstractMethod
  * [#481] (https://github.com/magento/magento2/issues/481) -- GD2 Adapter PHP memory_limit
  * [#516] (https://github.com/magento/magento2/issues/516) -- Make Sure That save_before Event Is Dispatched
  * [#465] (https://github.com/magento/magento2/issues/465) -- Absolute path is assembled incorrectly when merging js/css files
  * [#504] (https://github.com/magento/magento2/issues/504) -- Renamed "contacts" module to "contact"
  * [#529] (https://github.com/magento/magento2/issues/529) -- Fixed exception at admin dashboard
  * [#535] (https://github.com/magento/magento2/issues/535) -- Fixed an issue during creating or editing product template
  * [#535] (https://github.com/magento/magento2/issues/535) -- Fixed Typo in the module name
  * [#538] (https://github.com/magento/magento2/issues/538) -- Fixed missing tax amount in the invoice
  * [#518] (https://github.com/magento/magento2/issues/518) -- Change to Magento\Customer\Block\Widget\Dob new version
* Fixed bugs:
  * Fixed implementation issues with Cron task group threading
  * Fixed inability to place order during customer registration flow
  * Fixed an issue where after JS minification errors appeared when loading pages which contained minified JS
  * Fixed an issue where it was impossible for users with restricted permission to export certain entities
  * Fixed an issue where checkout was blocked by the "Please enter the State/Province" pop-up for customers that had saved addresses
  * Fixed an issue where a fatal error appeared when trying to check out the second time with OnePageCheckout
  * Fixed an issue where a fatal error appeared when trying to create an online invoice for an order placed with PayPal Express Checkout (Payment Action = Order)
  * Fixed an issue where the special price for a bundle product was calculated wrongly
  * Fixed an issue where a fatal error appeared when trying to create a shipment for an order if Magento was installed without the USPS module
  * Fixed an issue where the Lifetime Sales and Average Orders sections of the Admin Dashboard were missing
  * Fixed an issue where the active tab changed after changing the attribute set
  * Fixed an issue with incorrect order of product types in the Add Product menu in the backend
  * Fixed an issue with saving the tier price attribute
* JavaScript improvements:
  * Upgraded the frontend jQuery library to version 1.11
  * Upgraded the frontend jQuery UI library to version 1.10.4
  * Modified the loader widget to render content using handlebars
  * Added the 'use strict' mode to the accordion widget
  * Added the 'use strict' mode to the tab widget

* Framework Improvements:
  * Fixed performance degradation caused by DI argument processors
* Modularity improvements:
  * Introduced the Magento_UrlRewrite module, and moved corresponding classes from Magento_Core to Magento_UrlRewrite
  * Moved all Install logic to the Magento_Install module
  * Eliminated the Core\Helper\Js class
  * Moved the Email related logic from the Magento_Core module to the Magento_Email module
  * Moved the Cache related logic from the Magento_Core module to library
* Indexer improvements:
  * Added execution time hints for console reindex
* Customer Service usage:
  * Refactored the Magento_Newsletter module to use Customer service layer
* Fixed bugs:
  * Fixed an issue with resetting customer password from the frontend
  * Fixed an issue where mistakenly the attribute of the Customer Address Edit form was cached
  * Fixed an issue where admin could not unsubscribe customer on the customer edit page in the backend
  * Fixed an issue where customers were always subscribed to the newsletter even if not selected during registration
* GitHub requests:
  * [#325] (https://github.com/magento/magento2/pull/325) -- ImportExport: Fix notice if _attribute_set column is missing

* Fixed bugs:
  * Fixed an issue with displaying product on the frontend when the product flat indexer is enabled
  * Fixed an issue with applying catalog price rules on the category level
  * Fixed an issue where the essential cookies like CUSTOMER, CART, and so on were not created in Google Chrome
  * Fixed an issue with placing orders by customers assigned to a VAT group
  * Fixed an issue with incorrect error message during registration, and inability for a shopper to ask for resending a confirmation email
  * Fixed an issue where the Catalog module resource Setup Upgrade logic was broken
* Modularity improvements:
  * Moved abstract Core models and related logic to the Magento/Model library
  * Moved the abstract DB logic and Core resource helpers to the Magento/DB library
  * Eliminated the Core\Model\App class
  * Moved the Magento Flag functionality to the library
  * Resolved dependency of the Catalog and related modules on the Review module
  * Moved indexers related logic from the Core module to the Indexer module
  * Moved the Inline translation and user intended translate functionality from the Core module to a separate Translation module
* Framework Improvements:
  * Covered Magento library components with unit tests:
     * Magento\Config
     * Magento\Convert
     * Magento\Controller
     * Magento\Data\Collection\Db
     * Magento\Mview
     * Magento\Url and Magento/Url.php
  * Covered Magento application components with unit tests:
     * Magento\Checkout\Model\Config
     * Magento\Checkout\Model\Observer
     * Magento\Checkout\Model\Type
     * Magento\Sales\Model\Config
  * Renamed LauncherInterface to AppInterface
* Improvements in code coverage calculation:
  * Updated the whitelist filter with library code for integration tests code coverage calculation
* GitHub requests:
  * [#512] (https://github.com/magento/magento2/issues/512) -- Theme Thumbnails not showing
  * [#520] (https://github.com/magento/magento2/pull/502) -- Corrected Search Engine Optimization i18n
  * [#519] (https://github.com/magento/magento2/issues/519) -- New Theme Activation
* Customer Service usage:
  * Refactored the Log module to use Customer Service
  * Refactored the RSS module to use Customer Service
  * Refactored the Review module to use Customer Service
  * Refactored the Catalog module to use Customer service layer
  * Refactored the Downloadable module to use Customer service layer

* Fixed bugs:
  * Fixed an issue where the schedule of recurring payments was not displayed in the shopping cart
  * Fixed an issue with displaying tax class names in the Customer Groups grid
  * Fixed an issue with testing Solr connection
  * Fixed an issue with using custom module front name
  * Fixed an issue with USPS and DHL usage in the production mode
* Modularity improvements:
  * Consolidated all logic related to Layered Navigation in one separate module
* Framework Improvements:
  * Covered Magento library components with unit tests:
     * Magento/Interception
     * Magento/ObjectManager
     * Magento/Message
     * Magento/Module
     * Magento/Mail
     * Magento/Object
     * Magento/Math
* Updated XML files to include a reference to the schema file in a form of a relative path
* Updated code to be PSR-2 compliant

* Themes update:
  * LESS styles library added in pub/lib/css/
  * A new Blank theme set as default
* GitHub requests:
  * [#491](https://github.com/magento/magento2/pull/491) -- Fixed bug, incorrect auto-generation Category URL for some groups of symbols (idish, cirrilic, , , and other).
  * [#480](https://github.com/magento/magento2/pull/480) -- Fixing a bug for loading config from local.xml
  * [#472](https://github.com/magento/magento2/issues/472) -- Params passed in pub/index.php being overwritten
  * [#461](https://github.com/magento/magento2/pull/461) -- Use translates for Quote\Address\Total\Shipping
  * [#235](https://github.com/magento/magento2/issues/235) -- Translation escaping
  * [#463](https://github.com/magento/magento2/pull/463) -- allow _resolveArguments to do sequential lookups
  * [#499](https://github.com/magento/magento2/issues/499) Deleted unclosed comment in calendar.css
* Fixed bugs:
  * Fixed a fatal error that occurred with a dependency in pub/errors/report.php
  * Fixed an issue where code coverage failed for Magento\SalesRule\Model\Rule\Action\Discount\CartFixedTest
  * Fixed an issue where PayPal Express Checkout redirected to the PayPal site even though the Allow Guest Checkout option was set to 'No'
  * Fixed an issue where invalid password reset link was sent when resetting customer password from the backend
  * Fixed an issue where it was not possible to download a previously created backup
  * Fixed a security issue with possibility of a XSS injection in the Integration re-authorization flow
  * Fixed an issue where Billing Agreement cancellation from the backend did not work
  * Fixed an issue with the debug section in the developer settings
  * Fixed the unreliable implementation of the fetching authorization header via SOAP
  * Fixed issues with WSDL generation error reporting
  * Fixed an issue with incorrect order of the Recurring Profile tab in Account Customer on the frontend
  * Fixed an issue when the information about a custom option of the 'File' type was not displayed correctly on the recurring profile page
  * Fixed an issue with editing Product template
  * Fixed an issue with duplicated shipping method options during checkout
  * Fixed an issue where flat indexers were re-indexed in shell when they were disabled
  * Fixed an issue where adding a wrong/nonexistent SKU using 'Order by SKU' from My Account caused a fatal error
  * Fixed an issue with the JS/CSS merging functionality
  * Fixed an issue with static view files publication tool used for the 'production' mode
* Modularity improvements:
  * Removed the deprecated GoogleCheckout functionality
  * Removed all dependencies on the RecurringPayment module
  * Removed the Sales module dependencies on Customer models/blocks
  * Renamed the RecurringProfile module to RecurringPayment
  * Resolved dependencies between the Email Templates functionality and other modules
  * Moved Core module lib-only depended components to library
  * Moved CSS URL resolving logic from publisher to the separate CSS pre-processor
  * Re-factored the View publisher
* Framework improvements:
  * Added restrictions on the data populated to the Service Data Object
  * Renamed Data Transfer Object to Service Data Object
  * Updated the view files population tool to support LESS
* Customer Service usage:
  * Refactored the Tax module to use Customer service layer
  * Refactored Customer module Adminhtml internal controllers and helper to use Customer services
  * Added and updated the Customer service APIs
  * Exposed Customer services as REST APIs
* Indexer implementation:
  * Implemented a new optimized Product Price Indexer
* Updated various PHPDoc with the parameter and return types

* Cache:
  * Implemented depersonalization of private content generation
  * Implemented content invalidation
  * Added Edge Side Includes (ESI) support
  * Added a built-in caching application
* GitHub requests:
  * [#454](https://github.com/magento/magento2/pull/454) -- Allow to specify list of IPs in a body on maintenance.flag which will be granted access even if the flag is on
  * [#204](https://github.com/magento/magento2/issues/204) -- Mage_ImportExport: Exporting configurable products ignores multiple configurable options
  * [#418](https://github.com/magento/magento2/issues/418) -- Echo vs print
  * [#419](https://github.com/magento/magento2/issues/419) -- Some translation keys are not correct.
  * [#244](https://github.com/magento/magento2/issues/244) -- Retrieve base host URL without path in error processor
  * [#411](https://github.com/magento/magento2/issues/411) -- Missed column 'payment_method' of table 'sales_flat_quote_address'
  * [#284](https://github.com/magento/magento2/pull/284) -- Fix for Issue #278 (Import -> Stores with large amount of Configurable Products)
* Fixed bugs:
  * Fixed an issue where Mage_Eav_Model_Entity_Type::fetchNewIncrementId() did not rollback on exception
  * Fixed an issue where a category containing more than 1000 products could not be saved
  * Fixed inappropriate error messages displayed during installation when required extensions were not installed
  * Fixed synopsis of the install.php script
  * Fixed an issue where the schedule of recurring payments was not displayed in the shopping cart
* Modularity improvements:
  * Introduced the OfflinePayments module - a saparate module for offline payment methods
  * Added the ability to enable/disable the Paypal module
  * Moved the framework part of the Locale functionality from the Core module to library
  * The Locale logic was split among appropriate classes in library, according to their responsibilities
  * Removed the deprecated DHL functionality
  * Introduced the OfflineShipping module for offline shipping carrier functionality: Flatrate, Tablerate, Freeshipping, Pickup
  * Introduced a separate module for the DHL shipping carrier
  * Introduced a separate module for the Fedex shipping carrier
  * Introduced a separate module for the UPS shipping carrier
  * Introduced a separate module for the USPS shipping carrier
* Framework Improvements:
  * Added the ability to intercept internal public calls
  * Added the ability to access public interface of the intercepted object
  * Added a static integrity test for plugin interface validation
  * Added support for both class addressing approaches in DI: with and without slash ("\") at the beginning of a class name
* Customer Service usage:
  * Refactored the Customer module blocks and controllers to use customer service layer
* Security:
  * Introduced the ability to hash a password with a random salt of default length (32 chars) by the encryption library
  * Utilized a random salt of default length for admin users, and frontend customers

* GitHub requests:
  * [#235](https://github.com/magento/magento2/issues/235) -- Translation escaping
  * [#463](https://github.com/magento/magento2/pull/463) -- allow _resolveArguments to do sequential lookups
* Fixed bugs:
  * Fixed an issue where nonexistent store views flat tables cleanuper dropped the catalog_category_flat_cl table
  * Fixed an issue where the Product Flat Data indexer used the helpers logic instead of the Flat State logic
  * Fixed an issue where an exception was thrown when applying a coupon code
  * Fixed an issue where a Shopping Cart Price Rule was applied to the wrong products
  * Fixed an issue with the broken Related Orders link on the Recurring Profile page
  * Fixed an issue with CMS pages preview not working
  * Fixed an issue with a sales report for a store view returning wrong result
  * Fixed an issue where shipping did not work for orders containing only bundle products
  * Fixed an issue where a custom not found page action did not work
  * Fixed an issue where user configuration for a shopping cart rule to stop further rules processing was ignored
* Modularity improvements:
  * Resolved dependencies of the Sales module on the RecurringProfile module
  * Resolved dependencies of the Email Templates functionality on application modules
  * Lib-only dependent components of the Core module moved to library
  * CSS URL resolving logic moved from the publisher to a separate CSS pre-processor
  * Refactored the View publisher
* Customer Service usage:
  * Refactored the Sales module to use Customer service layer
  * Refactored the Checkout module to use Customer service layer
* Updated various PHPDoc with the parameter and return types

* GitHub requests:
  * [#134] (https://github.com/magento/magento2/pull/134) Fixed a typo in "Vorarlberg" region of Austria (was Voralberg)
* Fixed bugs:
  * Fixed an issue with the "Add to Cart" button on the MAP popup of compound products
  * Fixed an issue where the "Add Address" button for Customer in Admin was broken
  * Fixed an issue where predefined data are not loaded for a newsletter when it is added to a queue
* Indexer implementation:
  * Implemented a new optimized Catalog Category Product Indexer
  * Implemented a new optimized Catalog Category Flat Indexer
  * Implemented a new optimized Catalog Product Flat Indexer
* Modularity improvements:
  * Moved all Configurable Product functionality to a newly created ConfigurableProduct module
  * Moved the Shortcut Buttons abstraction from PayPal to Catalog
  * Moved the Recurring profile functionality to a separate module
  * Moved the Billing Agreements functionality to the PayPal module
  * Finalized the work on resolving dependencies between the Multishipping module, and all other modules. Module can be removed without any impact on the system
* Customer Service usage:
 * Updated Customer Group Grid to use Customer Service for data retrieving and filtering
 * Updated CustomerMetadataService::getAttributeMetadata to throw an exception if invalid code is provided
* Unified the format of specifying arguments for class constructors in DI and in Layout configuration:
  * A common xsd schema is being used for defining simple types. Layout and DI customize common types with their specific ones
  * Argument processing is unified, and moved to library

* Fixed bugs:
  * Fixed inability to execute System Backup, Database Backup, and Media Backup
* Indexer implementation:
  * Implemented a new optimized Catalog Category Flat Indexer
* Cron improvements:
  * Added the ability to divide cron tasks into groups
  * Added the ability to run cron groups in separate processes
* Caching improvements:
  * Added a new mechanism to identify uniquely page content (hash-key for cache storage)
  * Added a tab for Page Cache mechanism in System Configuration
  * Implemented the ability to configure the Varnish caching server settings and download it as a .vcl file
* LESS pre-processing to CSS
  * LESS files in library, theme, module are automatically compiled to CSS during materialization
  * LESS files compilation caching mechanism added in Developer mode
* Modularity improvements:
  * Moved the Shortcut Buttons abstraction from PayPal to Catalog
  * Moved the Recurring Profile functionality to a separate module
  * Moved the Billing Agreements functionality to the PayPal module
* Improvements in code coverage calculation:
  * Added code coverage calculation in the clover xml format for unit tests
* GitHub requests:
 * [#377] (https://github.com/magento/magento2/issues/377) Remove and avoid javascript eval() calls
 * [#319] (https://github.com/magento/magento2/issues/319) No message was displayed when product added to shopping cart.
 * [#367] (https://github.com/magento/magento2/issues/367) Improve the error message from the contact form
 * [#469] (https://github.com/magento/magento2/issues/469) Can't change prices on different websites for custom options
* Updated the Customer service exception handling, and added tests
* Added usage of the Customer service to the Customer module, replacing some direct usage of the Customer model
* Updated various PHPDoc with the parameter and return types

* Modularity improvements:
  * Moved abstract shopping cart logic from the Paypal module to the Payments module
* Caching improvements:
  * Added a new mechanism to uniquely identify page content (a hash-key for cache storage)
  * Replaced the "magentoZoom" plugin with two widgets: the "gallery" and "zoom"
* Fixed bugs:
  * Fixed an issue with inserting an image in WYSIWYG editor where the selected folder was stored in session
  * Fixed an issue with CMS Page Links not being shown because of the empty text in the link
  * Fixed an issue where zooming functionality was not disabled for the responsive design
  * Fixed an issue with zooming on a configurable product page where the main product image was shown instead of the selected option images
* Updated various PHPDoc with parameter and return types
* Moved quote-related multishipping logic to the Multishipping module
* Resolved dependencies between the Payment and Multishipping modules
* Moved the framework part of the Translate functionality from modules to the library
* Created the architecture for the email template library
* Introduced a consistent approach for using the Config scope
* Fixed an issue with the dependency static test

* Modularity improvements:
  * Consolidated all PayPal-related logic in a separate module
  * Resolved dependencies on the Magento_GroupedProduct module
  * Added the ability to enable/disable/remove the Magento_GroupedProduct module without impact on the system
* Implemented the Oyejorge Less.php adapter
* Implemented the Less files importing mechanism
* Added the ability to configure certain cache frontend, and associate it to multiple cache types, thus avoiding the duplication of cache configuration
* Implemented the more strict format of array definition in the DI configuration:
  * Covered array definitions with XSD, and made the whole DI configuration validated with XSD
  * Added the ability to define arrays with keys containing invalid XML characters, that was impossible when keys were represented by the node names
* Fixed bugs:
  * Fixed an issue with missed image for a cron job for the abandoned cart emails
  * Restored the ability to configure cache storage in `local.xml`
  * Fixed an issue with the css\js merging functionality
  * Fixed an issue with customer selection on the order creation page
* AppInterface renamed to LauncherInterface
* Removed the reinit logic from the Config object
* Framework part of the "URL" functionality removed from modules
* Framework part of the "Config" functionality removed from modules
* Removed the deprecated EAV structure creation method from the EAV setup model
* Updated various PHPDoc with parameter and return types
* Indexer implementation:
  * Implemented a new indexer structure
* Refactored Web API Framework to support the Data Object based service interfaces
* Refactored controllers, blocks and templates of the Sales module to use Customer service
* GitHub requests:
  * [#275] (https://github.com/magento/magento2/issues/275) -- XSS Vulnerability in app/code/core/Mage/CatalogSearch/Block/Result.php
* Removed the outdated Customer service

* Modularity improvements:
  * Moved all Grouped Product functionality to newly created module GroupedProduct
  * Moved Multishipping functionality to newly created module Multishipping
  * Extracted Product duplication behavior from Product model to Product\Copier model
  * Replaced event "catalog_model_product_duplicate" with composite Product\Copier model
  * Replaced event "catalog_product_prepare_save" with controller product initialization helper that can be customozed via plugins
  * Consolidated Authorize.Net functionality in single module Authorizenet
  * Eliminated dependency of Sales module on Shipping and Usa modules
  * Eliminated dependency of Shipping module on Customer module
  * Improved accuracy and quality of Module Dependency Test
* Fixed bugs:
  * Fixed an issue when order was sent to PayPal in USD regardless of currency used during order creation
  * Fixed an issue with 404 error when clicking any button on a Recurring Billing Profile in the backend
  * Fixed an issue with synchronization with Google Shopping on product update caused by missed service property
  * Fixed ability to submit order in the backend when Authorize.Net Direct Post is used
  * Fixed an issue with notice that _attribute_set column is missing during Import/Export
* Removed the deprecated service-calls and data source functionality
* Request\Response workflow improvements:
  * Added Console\Response
  * Changed behavior of AppInterface to return ResponseInterface instead of sending it

* Introduced a new layout block attribute - cacheable
* Fixed bugs:
  * Fixed an issue with displaying configurable product images in shopping cart
  * Fixed an issue with Tax Summary not being displayed properly on the Order Review page
  * Optimized the Plushe theme CSS
  * Fixed attribute types for configurable product variations
  * Fixed an issue with incorrect link in the Reset Password email for customers registered on the non-default website
  * Fixed an issue with creating orders using DHL on holiday dates
  * Fixed product export
  * Fixed 3D secure validation
  * Fixed an issue with session being lost when a logged in user goes from store pages using secure URL to the store pages which do not use secure URL
  * Fixed an issue with price ranges in the Advanced search

* Fixed bugs:
  * Fixed an issue with exceeding the memory limit when uploading very big images
  * Fixed an issue in moving a category when $afterCategoryId is null
  * Fixed an issue when products from a non-default website were not available as bundle items
  * Fixed an issue when orders placed via Authorize.net had the wrong statuses
  * Fixed an issue where orders placed via PayPal Express Checkout could not be placed if HTTPS was used on the frontend
  * Fixed a security issue with a user session during registration
  * Removed a CSRF vulnerability in checkout
  * Fixed an issue with JavaScript static testing framework not handling corrupted paths in white/black lists properly
  * Fixed an issue with Google Shopping synchronization
  * Fixed the contextual help tooltip design
  * Fixed an issue with the Authorize.net CC section UI on the Onepage Checkout page
  * Fixed UI issues on the order pages in the backend
  * Fixed UI issues in the backend for IE9
  * Fixed UI issues on the Edit Customer page in the backend
  * Fixed a UI issue with the image preview placeholder on the Edit Product page for IE9
  * Fixed UI issues with forms in the backend
  * Fixed UI issues with buttons in the backend
  * Fixed an issue with a product status after a virtual product was duplicated
  * Fixed a fatal error with attribute file from the customer account page in the backend
  * Fixed a security issue when CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST where used with improper values sometimes
  * Updated the field descriptions for Secure Base URL settings in the backend
  * Fixed an issue in product duplication for multiple store views
  * Consolidated several 3rd-party JavaScript libraries in the pub/lib directory, and fixed license notice texts to conform to the open source license requirements
* Service Layer implementation:
  * Implemented the initial set of services for the Customer module

* Fixed bugs:
  * Fixed invalid year in exception log errors
  * Fixed the double-serialization in saving data for shipments
  * Fixed an issue with adding a gift wrapping for multiple items
  * Fixed shipping labels generation for DHL
  * Fixed an issue with lost product price and weight during import
  * Fixed a fatal error when a file reference is added to the HTML head
  * Fixed an issue with printing orders containing downloadable product(s)
  * Fixed an issue with the 'Same as shipping' check box not being selected on the Review Order page for PayPal Express checkout
  * Fixed an issue with Email Templates preview showing a blank page
  * Fixed an issue with a refund creation from the PayPal side
  * Removed the occurrences of the non-existing Mage_Catalog_Model_Resource_Convert resource model
  * Fixed an issue with a coupon usage after applying it with multiple addresses
  * Fixed the Abandoned Cart emails sending
  * Fixed an issue where users with "Reorder" permission could not perform reorder
  * Fixed an issue with adding items from wishlist to the Shopping Cart with quantity increments enabled
  * Fixed an issue with the catalog_url indexer incorrect rewrites history for categories
  * Fixed an issue in saving an integration with a duplicate name
  * Fixed an issue when a customer could see someone's else reviews on the private Account Dashboard
  * Fixed an issue when a "New Theme" page was displayed as broken when trying to create a theme with incorrect "Version" value
  * Fixed an issue in saving an integration with XSS injection in the required fields
  * Fixed an issue with the Mini Shopping Cart when it contained virtual product
  * Fixed an issue in disabling the Shopping Cart sidebar
  * Fixed an issue when the "Adminhtml" cookie was not set when a user logged in to the backend
  * Fixed an issue when the "Persistent_shopping_cart" cookie was not set after customer's login
  * Fixed inability to publish products to Google Shopping
  * Fixed inability to download or revert the backup
  * Fixed inability to create a customer account when placing an order with a downloadable product
* Various improvements:
  * Disabled PHP errors, notices and warnings output in the production mode, to prevent exposing sensitive information

* Fixed bugs:
  * Security improved for the Login, Update Cart, Add to Compare, Review, and Add entire wishlist actions on the frontend
  * Removed warnings on category pages when Flat Catalog Category is enabled
  * Fixed product price displayed in wrong currency after switching currency on the frontend
  * Fixed the Save & Duplicate action in product creation
  * Fixed big image scaling in product description
  * Fixed admin dashboard styling issue
  * Fixed validation message for the Quantity field on the product page in the backend
  * Fixed the email template for sharing a Wishlist
  * Fixed the response of the drop-down menu in the Plushe theme
  * Fixed the missing Related Banners tab for Catalog Price Rule
  * Fixed inability to enable the duplicated product
  * Removed warnings on saving payment method configuration
  * Fixed gift messages displaying on the Order View page after admin edits
  * Fixed inability to create a new order status
  * Fixed the behavior of the Save and Previous and the Previous buttons on the Edit Review page
  * Fixed inability to delete a website if the number of websites is less or equal to two
  * Fixed Export on the All Customers page
  * Fixed inability to add products to the Shopping Cart from the Category page in Internet Explorer
  * Fixed logo on the backend login page
  * Fixed visual elements to indicate that Tax details can be expanded on the order creation page in the backend
  * Fixed the CMS page preview design
  * Fixed the newsletter template preview design
  * Fixed the Matched Customers grid design in the Email Reminder Rules
  * Fixed the theme version validation message displayed when creating a new theme
  * Fixed performance degradation during installation wizard execution
  * Fixed cron shell script
  * Fixed user login on the frontend, when the Redirect Customer to Account Dashboard after Logging option is set to No
  * Fixed errors in requests to shipping carrier (DHL International) when the shipping address contains letters with diacritic marks
  * Fixed invalid account creation date
  * Fixed displaying Product Alert links on product view page when the functionality is disabled
  * Fixed the absence of some bundle options when configuring a bundle product in the Shopping Cart on the frontend
  * Fixed the issue which allowed to view and cancel billing agreements belonging to another customer
  * Fixed the content spoofing vulnerability when Solr was used
  * Fixed a potential XSS vulnerability in customer login
  * Fixed RSS feed for categories containing bundle product(s)
  * Fixed inability to place an order with 3D Secure in Internet Explorer 10
  * Fixed inability to place an order with PayPal Payflow Link and PayPal Payments Advanced
  * Fixed integrity constraint violation in catalog URL rewrites
  * Fixed the absence of the error when a wrong website code is specified during a website creation
  * Fixed saving in the backend a new customer address, which contains new customer address attributes configured to be not visible on frontend
  * Fixed USPS shipping method in the checkout
  * Fixed placing orders with recurring profile items via PayPal Express Checkout
  * Fixed email template creation in the backend
  * Fixed the issue with default billing address being used instead of default shipping address during admin order creation
  * Fixed inability to choose DB as Media Storage
  * Fixed PHP issues found during the UI testing of the backend
  * Fixed shipping label creation for USPS Priority Mail Shipping methods
  * Fixed the issue which allowed to create customers with duplicate email
  * Fixed the abstract product block error in the tier price template getter
  * Fixed system message displaying in the backend
  * Fixed the "404" error on customer review page
  * Fixed autocomplete enabled on the admin login page
  * Fixed the 3D Secure iframe
  * Fixed the indicators of mandatory fields on the Package Extension page
  * Fixed product image scaling on the Compare Products page
  * Fixed product page design for products with the Fixed Product Tax attribute
  * Removed spaces between parentheses and numbers in the Cart, Wishlist, and Compare Products blocks
  * Fixed the message displaying the quantity for products found on the Advanced Search page
  * Fixed incorrect caching of locale settings and URL settings during web installation
  * Fixed inability to use a newly created store for admin user roles
  * Fixed absence of the Advanced Search field on the frontend, when the Popular Search Terms functionality is disabled
  * Fixed incorrect link to downloadable product(s) in the email invoice copy
  * Fixed customs monetary value in labels/package info for international shipments
  * Fixed importing for files with blank URL Key field on the store view level
  * Fixed table rate error message
  * Fixed frontend login without pre-set cookies
  * Fixed date resetting to 1 Jan 1970 after saving a design change in the admin panel in case date format is DD/MM/YY
  * Fixed CAPTCHA on multi-address checkout flow
  * Fixed view files population tool
* GitHub requests:
  * [#122](https://github.com/magento/magento2/pull/122) -- Added support of federal units of Brazil with 27 states
  * [#184](https://github.com/magento/magento2/issues/184) -- Removed unused blocks and methods in Magento_Wishlist module
  * [#390](https://github.com/magento/magento2/pull/390) -- Support of alphanumeric order increment ids by the quote resource model
* Themes update:
  * Responsive design improvements
* Improvements in code coverage calculation:
  * Code coverage calculation approach for unit tests was changed from blacklist to whitelist

* Fixed bugs:
  * Fixed [MAP]: "Click for price" link is broken on the category page
  * Fixed tax rule search on the grid
  * Fixed redirect on dashboard if "Search", "Reset", "Export" buttons are clicked on several pages
  * Fixed switching user to alternate store-view when clicking on the Category (with Add Store Code to Urls="Yes" in the config)
  * Fixed printing Order/Shipping/Credit Memo from backend
  * Fixed 404 Error on attempt to print Shipping Label
  * Fixed duplication of JavaScript Resources in head on frontend
  * Fixed inconsistency with disabled states on Configurable product page in the Plushe theme
  * Fixed 3D Secure Information absence on Admin Order Info page
  * Fixed possibility to download or revert Backup
  * Fixed session fixation in user registration during checkout
  * Fixed fatal error during login to backend
  * Fixed inline translations in the Adminhtml area
  * Fixed partial refunds/invoices in Payflow Pro
  * Fixed the issue with ignoring area in design emulation
  * Fixed order placing with virtual product using Express Checkout
  * Fixed the error during order placement with Recurring profile payment
  * Fixed wrong redirect after customer registration during multishipping checkout
  * Fixed inability to crate shipping labels
  * Fixed inability to switch language, if the default language is English
  * Fixed an issue with incorrect XML appearing in cache after some actions on the frontend
  * Fixed product export
  * Fixed inability to configure memcache as session save handler
* GitHub requests:
  * [#406](https://github.com/magento/magento2/pull/406) -- Remove cast to (int) for the varch increment_id
  * [#425](https://github.com/magento/magento2/issues/425) -- Installation of dev53 fails
  * [#324](https://github.com/magento/magento2/pull/324) -- ImportExport: Easier debugging
* Modularity improvements:
  * Removed \Magento\App\Helper\HelperFactory
  * Removed the "helper" method from the abstract block interface
  * Layout page type config moved to library
  * Design loader moved to library
  * Theme label moved to library
  * Remaining part from Adminhtml moved to the appropriate modules. Adminhtml module has been eliminated
  * Core Session and Cookie models decomposed and moved to library
    * \Magento\Stdlib\Cookie library created
    * Session Manager and Session Config interfaces provided
    * Session save handler interface created
    * Session storage interface created, session does not extend \Magento\Object anymore
    * Session validator interface created
    * Session generic wrapper moved to library
    * Messages functionality moved from the Session model as separate component, message manager interface created
    * Sid resolver interface created to handle session sid from request

* Fixed bugs:
  * Fixed placing order with PayPal Payments Advanced and Payflow Link
  * Fixed losing previously assigned categories after saving the product with changed category selector field
  * Fixed losing of a newly created category assignment after variations generation during Configurable product or Gift Card creation
  * Fixed the error in order placement with Recurring profile payment
* GitHub requests:
  * [#299](https://github.com/magento/magento2/pull/299) -- Fix for issue Refactor Mage_Rating_Model_Resource_Rating_Collection
  * [#341](https://github.com/magento/magento2/pull/341) -- Replacing simple preg calls with less expensive alternates
* Modularity improvements:
  * Layout page type config moved to library
  * Design loader moved to library
  * Theme label moved to library
* Themes update:
  * Reduced amount of templates and layouts in magento_plushe theme
  * Responsive design improvements
* Integrity improvements:
  * Covered all Magento classes with argument sequence validator
  * Added arguments type duplication validator
* Implemented API Integration UX flows:
  * Ability to create and edit API Integrations
  * Ability to delete API integrations that were not created using configuration files
* Removed System REST menu item and all associated UX flows:
  * Users, Roles, and Webhook Subscriptions sub-menu items were removed
* Removed the Webhook module

* Modularity improvements:
  * Session configuration moved to library
  * FormKey logic was moved from Session
  * SessionIdFlags from Session was removed
  * Move Page logic to the Theme module and library
* Created integration module UX
* Created authorization service (Magento_Authz module)
* Fixed bugs:
  * Fixed the issue that prevented a customer group's shopping cart rules from applying properly to prices. The issue occurred when a customer was manually assigned to a customer group and automatic group assignment was enabled.
  * Fixed the bug with schema upgrade scripts not running after installation
  * Fixed the error with a blank page when user tries to get access to a restricted resource via URL (add Secret Key for URL set to "No")

* Modularity improvements:
  * Breakdown of the Adminhtml module:
     * Moved Newsletter, Report logic to the respective modules
     * Moved blocks, config, view, layout files of other components from Adminhtml folder to respective modules
  * Removed application dependencies from the library
* Move Magento\Core common blocks in the library
* Application areas rework:
  * Areas are independent from Store
  * Removed deprecated annotation from the getArea methods
* GitHub requests:
  * [#245](https://github.com/magento/magento2/pull/245) -- Resolve design flaws in core URL helper
  * [#247](https://github.com/magento/magento2/pull/247) -- Bug in Mage_Page_Block_Html_Header->getIsHomePage
  * [#259](https://github.com/magento/magento2/pull/259) -- Turkish Lira (TRY) is supported for Turkish members.
  * [#262](https://github.com/magento/magento2/pull/262) -- Update Rule.php
  * [#373](https://github.com/magento/magento2/pull/373) -- [Magento/Sales] Fixed typos
  * [#382](https://github.com/magento/magento2/pull/382) -- [Magento/Core] Fixed typos
  * [#304](https://github.com/magento/magento2/pull/304) -- Removed Erroneous closing "
  * [#323](https://github.com/magento/magento2/pull/323) -- InstanceController.php - made setBody protected
  * [#349](https://github.com/magento/magento2/pull/349) -- Move Mage_Catalog menu declaration into Mage_Catalog module.
  * [#265](https://github.com/magento/magento2/pull/265) -- Update Merge.php
  * [#271](https://github.com/magento/magento2/pull/271) -- Check Data should validate gallery information
  * [#305](https://github.com/magento/magento2/pull/305) -- Extra ", tidied up nested quotes
  * [#352](https://github.com/magento/magento2/pull/352) -- Add Croatia Country as part of European Union since 1st July 2013 for default european local countries in configuration
  * [#224](https://github.com/magento/magento2/pull/224) -- Tax formatting is locale aware and should not
  * [#338](https://github.com/magento/magento2/pull/338) -- Correcting SQL for required_options column
  * [#327](https://github.com/magento/magento2/pull/327) -- cart api bug fix & partial invoice credit memo divide by zero warning
* Themes update:
  * Old frontend (magento_demo) and backend (magento_basic) themes are removed
  * Updated templates and layout updates in the Bundle, Catalog, CatalogInventory, CatalogSearch, Downloadable, ProductAlert, Reports, Sendfriend modules
* Fixed bugs:
  * Fixed the error when  Magento cannot be reinstalled to the same database with table prefix
  * Fixed report Products in Cart
  * Fixed error on attempt to insert image to CMS pages under version control
  * Fixed order status grid so that you can assign state, edit, and view custom order status
  * Fixed Related Products Rule page so that category can be selected on conditions tab
  * Fixed Magento_Paypal_Controller_ExpressTest integration test so it is re-enabled
  * Fixed the bug with international DHL quotes

* Moved general action-related functionality to \Magento\App\Action\Action in the library. Removed Magento\Core\Controller\Varien\Action and related logic from the Magento_Core module
* Moved view-related methods from action interface to \Magento\App\ViewInterface with corresponding implementation
* Moved redirect creation logic from the action interface to \Magento\App\Response\RedirectInterface
* Moved Magento\Core common blocks to the library
* Added reading of etc/integration/config.xml and etc/integration/api.xml files for API Integrations
* Various improvements:
  * Email-related logic from the Core and Adminhtml modules consolidated in the new Email module
* GitHub requests:
  * [#238](https://github.com/magento/magento2/pull/238) -- Improve escaping HTML entities in URL
  * [#199](https://github.com/magento/magento2/pull/199) -- Replaced function calls to array_push with adding the elements directly
  * [#182](https://github.com/magento/magento2/pull/182) -- By default use collection _idFieldName for toOption* methods.
  * [#233](https://github.com/magento/magento2/pull/233) -- Google Rich Snippet Code
  * [#339](https://github.com/magento/magento2/pull/339) -- Correcting 'cahce' typo in documentation.
  * [#232](https://github.com/magento/magento2/pull/232) -- Update app/code/core/Mage/Checkout/controllers/CartController.php (fix issue #27632)
* Fixed bugs:
  * Fixed JavaScript error when printing orders from the frontend
  * Fixed Captcha problems on various forms when Captcha is enabled on the frontend
  * Fixed "Page not found" on category page if setting "Add Store Code to Urls" to "Yes" in the backend config
  * Fixed Fatal error when creating shipping label for returns

* Better Navigation menu rendering due to improved Caching of Categories
* Added Magento\Filesystem\Directory and Magento\Filesystem\File to the library
* Various improvements:
  * Added a static test to check for incorrect dependencies in the library
  * Moved Magento\Core\Model\Theme to the Magento\View component
  * Moved Magento\Core\Model\Design to the Magento\View component
  * Consistent declaration of page-types
  * The Framework part of the Cache functionality moved out from modules
* Themes update:
  * Updated templates and layout updates in the Captcha, Customer, Newsletter, Persistent, ProductAlert, Wishlist modules; old files moved to the "magento-backup" theme
  * Refactored and removed duplicate Persistent module templates
  * Plushe theme made responsive
* Fixed bugs:
  * Fixed inability to print order, invoice, or creditmemo in the frontend
  * Fixed fatal error caused by the Mage_Backend_Block_System_Config_FormTest integration test
  * Fixed the broken link when the MAP feature is enabled and actual product price is set to be displayed in the shopping cart
* Moved the following methods from Core Helpers to the appropriate libraries:
  * Moved the Data Helper date format related functions to \Magento\Core\Model\Locale
  * Moved the Data Helper array decoration related functions to Magento\Stdlib\ArrayUtils
  * Moved the Data Helper functions that copy data from one object to another to \Magento\Object\Copy

* Application areas rework:
    * Single point of access to the current area code
    * Declare Application Areas
* Various improvements:
  * Breakdown of the Adminhtml module:
     * Moved the Customer-related logic to the Customer module
     * Moved the System-related logic to the Backend module
     * Moved the Checkout-related logic to the Checkout module
     * Moved the Cms-related logic to the Cms module
     * Moved the Promotions-related logic to the CatalogRule and SalesRule modules
  * Eliminated the setNode/getNode methods from Magento\Core\Model\Config and adopted all client code
  * Moved all application bootstrapping behavior to library
  * Moved application-specific behavior from the entry points to the Magento\AppInterface implementations
  * Removed the obsolete behavior from routing and front-controller
  * Refactored the route configuration loading
  * Extracted the modularity support behavior to the Magento\Module component
  * Refactored the Resource configuration loading
  * Removed the obsolete configuration loaders
  * Removed the obsolete configuration from config.xml
  * Refactored the code-generation mechanism
  * Added constructor integrity verification to the Compiler tool
  * Added strict naming rules for the auto-generated Factory and Proxy classes
  * Global functions are now called from app\functions.php
  * Removed functions.php from the Magento\Core module
  * Methods related to mageCoreErrorHandler, string and date were moved from functions.php to the Library components
  * Moved the following methods from Core Helpers to the appropriate libraries:
     * Moved the Abstract Helper to the Magento\Escaper and Magento\Filter libraries
     * Moved the String Helper to the Magento\Filter, Magento\Stdlib\String, Magento\Stdlib\ArrayUtils libraries
     * Moved the Data Helper to the Magento\Math, Magento\Filter, Magento\Convert, Magento\Encryption, Magento\Filesystem libraries and to Magento\Customer\Helper\Data libraries
     * Moved the Http Magento Helper to the Magento\HTTP library
  * The Hint Magento Helper, Http Magento Helper helpers were removed from the Magento\Core module
  * Implemented SOAP faults declaration in WSDL
  * Web API config reader was refactored to use Magento\Config\Reader\Filesystem
  * Created integrations module. Added 'Integrations Grid' and 'New/Edit' Integration pages in the admin
  * Removed obsolete page fragment code
* Fixed bugs:
  * Fixed inability to create an Invoice/Shipment/Credit Memo if the Sales Archive functionality is enabled
  * Fixed the Minimum Advertised Price link on the Product view
  * Fixed the View Files Population Tool
  * Fixed the error on saving the Google AdWords configuration
  * Fixed the error with the 'Invalid website code requested:' message appearing when enabling payment methods
  * Fixed inability to insert spaces in credit card numbers
  * Fixed inability to print orders from the frontend
  * Fixed the fatal error on removal of reviews that have ratings
  * Fixed JS error with the browser not responding when Virtual/Downloadable product are added to cart
  * Fixed inability to delete a row from the 'Order By SKU' form in Internet Explorer
  * Fixed inability to enable the Use Flat Catalog Product option
  * Fixed inability to configure Grouped and Configurable products during order creation in the backend
  * Fixed inability to insert a widget and/or a banner in CMS pages
  * Fixed inability to set the Quantity value for Gift Cards
  * Fixed the fatal error on the Customer Account > Gift Registry tab in the backend
  * Fixed inability to import with the "Customers Main File" entity type selected
  * Fixed the "Recently Viewed/Compared products" option missing on the New Frontend App Instance page
  * Fixed the fatal error on managing Shopping Cart for a customer with a placed order in the backend
  * Fixed the fatal error on an attempt to create an RMA request for Configurable products
  * Fixed error on the backend dashboard if any value except "Last 24 Hours" is chosen in the "Select Range" dropdown
  * Fixed duplicate values of options in the drop-downs on the RMA pages in the backend

* Modularity improvements:
  * Cleavage of Adminhtml module
    * Moved Sales, Catalog, Tax-related logic to respective modules
    * Moved Action, Cache, Ajax, Dashboard, Index, Json, Rating, Sitemap, Survey, UrlRewrite from root of Adminhtml Controller folder
  * View abstraction was moved into library
  * Eliminated dependency in Magento\Data\Form from Magento\Core module
  * Eliminated Magento\Media module
* Themes update:
  * Templates and layout updates are updated in Cms, Contacts, Core, Directory, GoogleCheckout, Page, Payment, PaypalUk, Paypal, Rating, Review, Rss,Sales, Widget modules, old files moved to magento_backup theme
* Layout improvements:
  * Removed page type hierarchy and page fragment types
  * No direct code execution: methods addColumnRender, addRenderer, addToParentGroup usages as action nodes were eliminated
* Fixed bugs:
  * Impossible to add image using WYSIWYG
  * Legacy static test ObsoleteCodeTest::testPhpFiles produced false-positive results
  * Incorrect copyright information

* Various improvements:
  * Unified Area configuration
  * Moved EventManager to Magento\Event lib component
  * Moved FrontController, Routers, Base Actions to Magento\App
  * Created Magento\App component in library
  * Declared public interfaces for View component into library
  * Plushe theme is set as the default theme
  * Refactor the Blacklist Pattern in the Integrity Test Suite's ClassesTest to Replace Blacklist.php Files
  * Removed JavaScript unit test TreeSuggestTest.prototype.testBind as obsolete
  * Introduced ability to register a template engine to process template files having certain extension
  * Removed support of the Twig template engine along with the corresponding component from the library
  * Removed layout flag that forced template blocks to output rendered content directly to a browser bypassing the response object
  * Moved out responsibility of rendering template debugging hints from the template block to the plugin and decorator for a template engine
* Fixed bugs:
  * Fixed inability to create product if multiple attributes are assigned to attribute set
  * Fixed inability to create a new widget instance
  * Fixed error on Customers Segments Conditions tab while the 'Number of Orders' condition is chosen
  * Fixed blank page when placing order via Ogone
  * Fixed various UI issues in Admin Panel with layout, aligning, buttons and fields
  * Fixed static tests failing to verify themes files

* Various improvements:
  * Added static integrity test for compilation of DI definitions
  * Lightweight replacement for PhpUnit data providers is implemented and involved in static and integrity tests with big data providers (primarily file lists)
* Fixed bugs:
  * Fixed broken styles on front-end due to usage of nonexistent stylesheet
  * Fixed plugins configuration inheritance for proxy classes
  * Fixed OAuth consumer credentials expiry not being correctly calculated and added credentials HTTP post to the consumer endpoint
  * Fixed Namespace class references
  * Fixed error on creating shipment with bundle products
  * Fixed uninstallation via console installer
  * Fixed JavaScript error in bootstrap in IE8/9
  * Fixed placing order within PayPal Payments Advanced and Payflow Link
  * Fixed fatal error on placing order with Billing Agreement

* Various improvements:
  * Added static integrity test for compilation of DI definitions
  * Lightweight replacement for PhpUnit data providers is implemented and involved in static and integrity tests with big data providers (primarily file lists)
* Fixed bugs:
  * Fixed broken styles on front-end due to usage of nonexistent stylesheet
  * Fixed plugins configuration inheritance for proxy classes
  * Fixed OAuth consumer credentials expiry not being correctly calculated and added credentials HTTP post to the consumer endpoint
  * Fixed Namespace class references
  * Fixed error on creating shipment with bundle products
  * Fixed uninstallation via console installer
  * Fixed JavaScript error in bootstrap in IE8/9
  * Fixed placing order within PayPal Payments Advanced and Payflow link
  * Fixed fatal error on placing order with Billing Agreement

* Fixed bugs:
  * Fixed compilation of DI definitions
  * Fixed direct injection of auto-generated proxy classes
  * Fixed usages of auto-generated factories on the library level
  * Fixed fatal error after saving customer address with VAT number
  * Fixed fatal error caused by USPS shipping method with debug
  * Fixed url to Tax Class controller
  * Fixed incorrect subtotal displayed on the Order page
  * Fixed incorrect arguments for shipping xml elements factory
  * Fixed theme editing in developer mode (PHP 5.4)
  * Fixed absent conditions during New Shopping Cart Price Rule creation
  * Fixed fatal error while try to edit created configurable product while Dev Mode enabled (PHP 5.4)
  * Fixed frontend error when persistent shopping cart functionality is enabled
  * Fixed Tax tab
  * Fixed broken link "Orders and returns" on frontend
  * Fixed placing order within OnePageCheckout using online payment methods
  * Fixed error when product is being added to order from backend if Gift Messages are enabled
  * Fixed error when product is being added to cart if MAP is enabled
  * Fixed error when product attribute template is being edited
  * Fixed error when setting configuration for Google API
  * Fixed backend issue when Stores>Configuration>System>Advanced page was not displayed and did not allow to save changes
  * Fixed not executable button "Continue shopping" on Multi-shipping process
  * Fixed error on adding product to shopping cart from cross-sells block
  * Fixed fatal error on Recurring Billing Profiles page
  * Fixed error on setting configuration for Catalog
  * Fixed error on placing order with Configurable product
  * Fixed issue with downloadable product creation
  * Fixed error on update configuration for payment methods
  * Fixed blank page on shopping cart if FedEx shipping method is enabled
  * Fixed fatal error when SID presents in URL
  * Fixed absence of selection of a role assigned to an admin user

* Translation mechanism improvements:
  * Translate function ->__() was removed from Magento model interfaces. Global function __() was created
  * Added I18n tools for translation dictionary generation and language package generation
* Configuration improvements:
  * Implemented Magento Config component that allows to create new configuration types in a simple way
  * Improved default/store/website configuration
     * config.xml file is designed to store only default/store/website configuration data
     * concrete store/website configuration is loaded on demand
  * Improved Install, Category, Product, EAV, Customer, Wishlist, PDF, VDE, Currency, Email Template, Crontab, Events, Routes, Modules, Locale, Import/Export, Indexer, Resources configuration segments:
     * Configuration moved to separate files. Some parts are transformed to DI configuration and moved to `di.xml` files
     * New configuration files are validated with XSD
     * Format of the configuration changed to make possible its validation
  * Improved configuration in `widget.xml`, `fieldset.xml`, `persistent.xml` and `install.xml` files:
     * `install.xml` was renamed to `install_wizard.xml`
     * The configuration is validated with XSD
     * Format of the configuration changed to make possible its validation
     * Some parts are transformed to DI configuration and moved to `di.xml` files
  * Removed `jstranslate.xml` files and moved all message definitions to `Magento_Core_Helper_Js`.
  * List of non-structured nodes from config.xml were transformed into DI configuration
* JavaScript improvements:
  * Prototype.js usages converted to jQuery:
     * Deprecated prototype.js based method removed from app/code/Magento/Weee/view/frontend/tax-toggle.js
     * Removed deprecated prototype.js based file: app/code/Magento/Checkout/view/frontend/opcheckout.js
     * Updated to use jQuery redirectUrl widget vs prototype based solution:
       * app/code/Magento/Oauth/view/adminhtml/authorize/form/login.phtml
       * app/code/Magento/Oauth/view/frontend/authorize/form/login.phtml
       * app/code/Magento/Catalog/view/frontend/product/list.phtml
  * Removed file containing jQuery that did not meet the Magento 2 coding standard. Replaced with redirect-url widget
     * app/code/Magento/Catalog/view/frontend/js/mage-attributes-processing.js
  * Updated to meet Magento 2 coding standard: app/code/Magento/Checkout/view/frontend/cart/item/default.phtml
  * Added jQuery widgets:
    * mage.deletableItem - Widget to tag DOM element as deletable, by default on click
    * mage.fieldsetControls & mage.fieldsetResetControl - Widget to easily reset a subset of form fields with a reset ui control
    * mage.itemTable  - Widget to easily add a data template block dynamically on an event, by default click.
    * mage.redirectUrl - Simple widget to allow for consistent javascript based redirects that meet the Magento 2 coding standard
    * Added new validation rules for validation widget: 'required-if-not-specified', 'required-if-specified', and 'validate-item-quantity'
* Various improvements:
  * Changed VendorName from Mage to Magento
  * Implemented PSR-0 and PSR-1 Coding Standards
    * All Magento source code has been converted.
    * Tests have been written to enforce PSR-0 and PSR-1 coding standards.
  * Removed empty module setup models. Core resource setup model is used as a default setup model now. Custom setup model must be injected via DI configuration
  * Removed some events (plugins must be used instead):
    * adminhtml_widget_container_html_before
    * admin_session_user_logout
    * model_config_data_save_before
    * admin_system_config_section_save_after
    * backend_menu_load_after
    * catalog_controller_category_init_before
    * catalog_helper_output_construct
    * catalog_controller_product_init
    * catalog_category_tree_move_before
    * catalog_category_tree_move_after
    * catalog_product_website_update_before
    * catalog_product_website_update
    * catalog_product_media_save_before
    * catalog_product_media_add_image
    * catalog_product_type_grouped_price
    * catalog_product_collection_load_before
    * catalogsearch_index_process_start
    * catalogsearch_index_process_complete
    * cms_page_get_available_statuses
    * cms_wysiwyg_config_prepare
    * application_clean_cache
    * theme_copy_after
    * customer_registration_is_allowed
    * log_log_clean_before
    * log_log_clean_after
    * sales_convert_quote_payment_to_order_payment
    * sales_convert_quote_item_to_order_item
    * sales_quote_config_get_product_attributes
  * Removed the Poll module including references and dependencies to/on it.
* Redesign and reimplementation of web services framework
  * Removed the Api module and all existing SOAP V1, SOAP V2, and XML-RPC web services code
  * Implemented new web services framework to support both REST and SOAP based off of a common service interface
  * Implemented a 2-legged OAuth 1.0a based authentication mechanism for both REST and SOAP API calls
* Layout improvements:
  * Arbitrary handle name moved to handle node, id attribute
  * New arguments format, which introduce argument types implemented
  * Translation specified just on the level of node which is going to be translated
  * XSD validation for Layouts XML added
  * Referential integrity check with XSD introduced
  * Added ability to update containers via references
  * Type casting for all kind of types (url, option, array and simple types) added
  * Covered introduced argument types with integrity test
  * Types restrictions was implemented
  * Removed access to direct execution of API through layout by removing <action> nodes
  * Implemented ability to declare containers in layout that don't have any specific semantic value
  * Removed handle declaration from layout update files. Name of the file stands for the handle ID and handle's attributes are defined in the root <layout> node
* PHP 5.4 and 5.5 support:
  * Made application compatible with PHP 5.4 and 5.5
  * Removed workarounds for older PHP versions
  * Minimum supported PHP version is set to 5.4.0
* God Class Mage Eliminated
* Fixed bugs:
  * Fixed address field "State/Province" on frontend, which contained "[object Object]" items instead of necessary values
  * Fixed overriding/extending of global plugin configuration in area specific configuration

* Product management improvements:
  * Added ability to create variation on the Product creation page
  * Added ability to add attributes on the Product creation page. Attribute values also can be added directly from the Product creation page
  * Removed "Delete" button from the Product Edit page. Products can be deleted from Products Grid only
  * Enhanced Product Edit page
  * Improved visual styles and business logic for new category creation from product creation page
  * Updated button names for Grouped and Bundle products, added an ability to translate them
  * Changed design of all popup windows on product creation page
  * Simplified UI to add an attribute: made less fields there by default, restructured element positions, hidden rarely-used controls
  * Created a popup to select image for product variations
* JavaScript improvements:
  * Eliminated `json2.js` library since JSON parsing is bundled in all supported browsers
  * `Ajax.Autocompleter` is replaced with jQuery suggest widget for search in backend
  * `jsTree` jQuery plugin is utilized for User Roles, Api Roles, CMS Pages and URL Rewrites management pages in backend
  * Improved jQuery validation for credit cards
  * Added support of `$.mage.component` in some frontend themes
  * Further refactoring of JavaScript to use JQuery library:
     * Scripts are converted in the following modules and components: Centinel, Authorize.net, Payflow Link, Payflow Pro, Paygate, Paypal Express, Checkout, Captcha
     * Refactored Prototype-based implementation of validation in "New Category" dialog to use jQuery
     * Removing Prototype inclusion in several places
  * Enhanced menu behavior in backend
* VDE improvements:
  * Implemented inline translate tool for VDE
     * Added new dedicated button "T" in interface
     * 3 different modes: Page Text, Variable Text (for script texts), Alternative Text (for attributes)
     * Independent enabling of inline translation on frontend and in VDE
  * Modified some text messages in VDE and in themes management
  * Added ability to upload, browse and delete images and fonts that can be used in custom CSS
  * Added ability to duplicate a theme
  * Added ability to revert theme modifications to a last saved checkpoint
  * Improved theme's background image handling
  * Added alert, when deleting a block
  * Removed drag-n-drop feature
  * Refined and streamlined interface
* HTML improvements:
  * Enhanced accessibility in admin by labeling form fields
* Payment improvements:
  * Incorporated changes to the PayPal UI configuration from CE 1.7.0.1
     * Moved PayPal configuration to the Payment Methods menu section
     * Set the default value of the cUrl `VERIFYPEER` option to `true` for PayPal and added the ability to change this value
     * Changed the design and position of the configuration field tooltips
  * Removed support of Moneybookers payment method and underlying module in favor of 3rd party extensions
  * Implemented support of PayPal IPN protocol HTTP 1.1
  * Implemented a single place to configure credentials for Payflow Link and Express Checkout
* System Configuration improvements:
  * Added the functionality for creating nested field sets
  * Implemented the support for the extended and shared configuration fields
  * Added the ability to define dependencies between fields from different field sets
* `Varien_Image` library refactored:
  * Created adapters factory instead of class `Varien_Image_Adapter`
  * Refactored ImageMagick and GD adapters to make them testable
  * Added feature of generating image from text
* Support of Google services:
  * Changed module `Mage_GoogleOptimizer` to support Google Content Experiment instead of Google Optimizer
  * Implemented support of Google AdWords on the checkout success page
* DI improvements:
  * Added ability to configure DI for individual class instances
  * Added ability to pass differently configured instances to different parts of the system
  * Refactored proxy and factory generation mechanism
* Layout improvements:
  * Implemented all-new mechanism of layout merging and customization:
     * Convention over configuration approach is used, i.e. there is no need to declare layout files in module configs anymore
     * Added support for merged modular layout files in a theme instead of single `local.xml` theme file
     * All theme `local.xml` files are broken down and moved to theme modular layout files
     * All the layout files are broken into smaller ones - one layout handle per one file, so that code duplication cane reduced, when overriding layout files in themes
     * Covered new layout customization mechanism with integrity tests
  * Relocated several files, declared in layouts
  * Streamlined several design customizations
* Various improvements:
  * Refactored fallback paths to prevent searching of modular view files in non-module context, covered application with appropriate integrity test
  * Added configuration for limits on sending wishlist emails
  * Refactored default theme fixture in integration tests in order to divide it into smaller and easier to understand fixtures
  * Moved Currency Symbol module files from Adminhtml module to the module itself
  * "Contact Us" page is available through HTTPS only
  * Language selector for backend interface removed from footer. Language can be chosen on My Account page or on backend user edit page
  * Updated page titles in backend
  * Improved mechanism of notification and system messages in backend. All related blocks and controllers are moved to AdminNotification module. Enhanced visual representations of notifications: bubble for unread messages, popup for notifications and their descriptions
  * Updated text of some system messages, backend interface messages, backend menu items
  * Several classes are refactored to use Event Manager instead of `Mage::dispatchEvent()`
  * Improved test coverage of entry point classes
  * Improved authorization logic to be reusable with minimal configuration changes
  * Introduced App Area in Integration Testing Framework
  * Improved media entry point
  * Added plugins/interceptors support for easier extensibility of Magento functionality
  * Added `application_process_reinit_config` event, so that it is possible to react, when Magento config gets reinitialized
  * Added "less" to a list of files that are not published to the public directory during deployment process
  * Eliminated requirement of write access to `pub/static` directory in "production" mode. "Developer" and "default" modes still require write access to this directory
  * Improved test coverage of recently introduced `Mage_Core_Model_Config_` classes
  * Added proper description to the error message, shown when uploading too big file with a content to import
  * Refactored `Mage_Core_Model_Design_Package` - broken it down into several smaller classes according to the sets of responsibilities
  * Refactored Theme and Theme Service models to follow best practices of OOP design
  * Removed legacy API tests
  * Improved transparency of cache control by tag scope in the framework
  * Improved verification process for the application directories write-access by moving it to the top-level of framework initialization
  * Introduced separate configurable application directory to be used for merged Javascript files
  * Implemented support for minification of Javascript files; JSMin library adapter is created
  * Implemented explicit usage of cache type in collections; engaged it for website, store and store view collections; added tests for a number of collections
  * Implemented explicit usage of cache types in translations
  * Implemented explicit usage of cache types in layouts
  * Removed ability to set limits on maximal amount of categories, products, websites, stores, store views and admin users as an unusable feature
  * Improved and simplified path normalization methods in `Magento_Filesystem` component
  * Implemented proper exceptions instead of PHP warnings in `Magento_Filesystem` component
  * Introduced `Mage_Core_Model_ModuleManager` to provide "enabled" information about modules
  * Enabled following cache types in integration tests to improve performance: configuration, layouts, translations, EAV
  * Improved and refreshed design for backend
  * Removed "demo_blue", "iphone" and "modern" themes
  * Converted more backend grids from PHP implementation to layout declarations
  * Refactored experimental implementation of Service Calls Framework
     * All code from to `lib/Magento/Datasource` and `app/code/Mage/Core/Datasource` moved to `app/code/Mage/Core/DataService`
     * Added service calls support in Layout model
     * Fixed bugs and architectural flaws
     * Changed service calls declaration
     * Improved test coverage
     * Introduced mechanism to retrieve values from nested arrays by path
     * Added Invoker class to invoke service calls by given name
     * Added ability to define system configuration options via service calls. Refactored implementation for select field in XML
  * Refactored support of Twig templates
     * Removed experimental implementation of product view page with Twig templates
     * Template abstraction moved to separate module `Mage_Core_Model_TemplateEngine`
     * Modified various blocks and templates due to inability to call protected methods from templates
     * Improved test coverage
  * Refactored support for webhooks
     * Code that provides communication with outbound endpoint moved to library `Magento_Outbound`
     * Code that provides implementation of publish-subscribe mechanism and instruments moved to library `Magento_PubSub`
     * Removed experimental webhook implementation in client code
     * Used WebApi mechanism to provide authorization
     * Improved UI for working with webhooks in Magento backend
     * Improved test coverage
  * Removed support of callbacks from the framework
* GitHub requests:
  * [#71](https://github.com/magento/magento2/pull/71) -- Add event prefix for Cms blocks
  * [#108](https://github.com/magento/magento2/pull/108) -- Fix issue with `PHP_VERSION` on Ubuntu servers
  * [#110](https://github.com/magento/magento2/pull/110) -- Fixes `Varien_Io_Sftp::write`, `Varien_Db_Adapter_Pdo_Mysql::insertOnDuplicate`
  * [#123](https://github.com/magento/magento2/pull/123) -- Performance problem & memory leak in `Mage_Index_Model_Process`
  * [#125](https://github.com/magento/magento2/pull/125) -- Ability to disable triggering controller action
  * [#148](https://github.com/magento/magento2/pull/148) -- Fixed readability
  * [#156](https://github.com/magento/magento2/pull/156) -- Event `adminhtml_cms_page_edit_tab_content_prepare_form` and `$form->setValues($model->getData());` in wrong order
  * [#161](https://github.com/magento/magento2/pull/161) -- FIXED `http://www.magentocommerce.com/bug-tracking/issue/?issue=7419`
  * [#176](https://github.com/magento/magento2/pull/176) -- Add print/log query flags to collection
  * [#202](https://github.com/magento/magento2/pull/202) -- Installer fails to detect `InnoDB` on `MySQL 5.6+`
  * [#215](https://github.com/magento/magento2/pull/215) -- There is no sort-order "best value"
  * [#217](https://github.com/magento/magento2/pull/217) -- Update `app/code/core/Mage/Adminhtml/locale/de_DE/Mage_Adminhtml.csv`
  * [#243](https://github.com/magento/magento2/pull/243) -- Fix helper for determining system memory usage on Windows (pull request for issue #237)
  * [#267](https://github.com/magento/magento2/pull/267) -- Issue with camel case in cusutom defined source models
* Bug fixes:
  * Fixed absence of a product for store view created after the product
  * Fixed incorrectly displayed or absent product image on configurable product pages
  * Fixed incorrectly displayed Tier Price message for Bundle product in backend
  * Fixed absence of configured options, when composite product is edited from wishlist
  * Fixed inability to set product rating from backend
  * Fixed bug with adding product with decimal quantity
  * Fixed bug with incorrect theme saving when wrong preview file is uploaded
  * Fixed incorrectly displayed error message when unsupported JavaScript file is uploaded while editing a theme
  * Fixed bug with incorrect price and stock availability information
  * Fixed absence of "Delete" button on Widget Instance and Edit Custom Variable pages
  * Fixed inability to change PayPal configuration
  * Fixed inventory return after cancelling order, paid with PayPal Website Payment Standard method
  * Fixed removal of all the items from shopping cart, when cancelling payment by PayPal Website Payment Standard method
  * Fixed issue with customer address saved in `sales_flat_quote_address` table as `null` or as default address instead of new one during checkout
  * Fixed hard dependency on GD extension during installation. Now the application can be installed if any of GD or ImageMagick extension is enabled
  * Fixed handling of creation a customer with already existing e-mail in backend
  * Fixed exception on customer edit page, when profiler is enabled
  * Fixed removal of "NOT LOGGED IN" customer group, when attempting to delete nonexistent group
  * Fixed absence of a welcome email for a new customer that is created in backend
  * Added validation of customer DOB
  * Fixed bugs related to "Add Store Code to Urls" configuration setting: the setting applied to backend and produced exceptions on frontend
  * Fixed inability to edit Newsletter Template
  * Fixed inability to preview Newsletter Template while creating it
  * Fixed inability to save Configuration from "Web" tab
  * Fixed incorrect roles assignment for backend users
  * Fixed incorrect message during checkout via Authorize.Net
  * Fixed inability to create order in backend with Authorize.Net as payment method
  * Fixed unexpected alert during one-page checkout
  * Fixed bug with broken RSS link on some pages
  * Fixed inability to delete non-empty customer groups
  * Fixed bug with absent tracking number in notification email
  * Fixed JS bug in bundle products
  * Fixed bug with missing product configuration in bundle products
  * Fixed absence of a summary for a configured bundle product on Product View page
  * Fixed bug with missing wishlist grid on customer configuration page
  * Added validation for the "Weight" field in Product Create/Modify admin form
  * Fixed infinite loop in reports, when one of the GET-parameters was not submitted
  * Fixed integration test that failed at the midnight
  * Fixed image placeholder, being displayed instead of Base image, in Product View page
  * Fixed multiple bugs in IE 8 and 9
  * Restored export for table rates
  * Fixed weight calculation for DHL
  * Fixed anchor categories, which didn't show products from child categories
  * Fixed exception, when applying catalog price rules
  * Disabled "State" dropdown for Tax Rates in countries, where there are no states
  * Fixed inability to save a CMS page
  * Fixed Javascript calendar in backend Customer grid
  * Fixed issues with fields validation on order management page
  * Fixed taxes on Bundle product page
  * Fixed "Rating isn't available" message on Edit Review page
  * Fixed lack of data in New Order emails, when order is composed at backend
  * Fixed exception message, when importing wrong tax rates file
  * Fixed editable multiselect control - new value was not shown there, when added
  * Fixed exception, when saving a configurable product without associated products
  * Fixed inability to properly save system configuration, when submitting files there
  * Fixed performance issue with excessive generation of category menu on "Add to Cart" page
  * Fixed amounts, being shown in a wrong currency, when viewing created order
  * Fixed calculation for amount of items, remaining in an order, after shipping and invoicing
  * Fixed wrong price, calculated, when ordering multiple bundle products in backend
  * Fixed issues with changing order statuses in backend
  * Tested backend design, fixed the discovered issues - general and browser-related bugs
  * Fixed order items, that have been shipped with Free Shipping method, to have "free shipping" status
  * Fixed issue with a State field being required in countries, where it is not mandatory
  * Fixed inability to upload a file via File custom option, when ordering a product at frontend
  * Fixed incorrect cron timezone settings
  * Fixed performance issues with product saving in case of concurrent search requests
  * Fixed bug in migration script
  * Fixed incorrect email when "Send auto-generated password" was hit
  * Fixed bug with missing category image
  * Fixed incorrect handling of `GET` parameter `isAjax` after session expiration
  * Fixed incorrect translation of "month" field for customer's birthday
  * Fixed Google Analytics script inclusion
  * Fixed bug with excessive custom rewrites after reindex
  * Fixed performance tests failure on login page
  * Fixed incorrect value for average rating on Edit Review page
  * Fixed bug with incorrect module configuration overriding
  * Fixed exception in Nominal Tax model
  * Fixed bug in sitemap URL used in `robots.txt`
  * Fixed bug with incorrect `custom_design` field value during export
  * Fixed bug with incorrect RSS title
  * Fixed CSS style for validation message in CMS widgets
  * Fixed bugs in `Mage_Tag` module on product creation page
  * Fixed incorrect Products In Cart report
  * Fixed incorrect price for bundles with default quantity more than 1
  * Fixed displaying of "Import Behavior" section in the `System -> Import` page
  * Fixed exception, when importing a CSV file with Byte Order Mark
  * Removed remains of code pools in JavaScript tests
  * Fixed bugs in shipping label creation
  * Fixed inability to save some sections of configuration
  * Fixed bug with empty "New Shipment" e-mail
  * Fixed inability to save Attribute Set in IE8
  * Fixed wrong tax summary for partial invoices and credit memos
  * Fixed bug with categories custom design, where the chosen theme was not applied
  * Fixed empty list of themes in CMS pages and Frontend Apps backend sections
  * Fixed fatal error, when trying to access a customer account in a non-installed Magento
  * Fixed Javascript error, when accessing system Design configuration in Chrome
  * Fixed wrong representation of a widget on frontend, after hiding and showing WYSIWYG editor during CMS page modification
  * Fixed exception, when using 2-level cache backend
  * Fixed random test failures in `Mage_CatalogSearch_Block_Advanced_ResultTest`
  * Fixed duplication of a view file signature, e.g. "file.ext?mtime?mtime"
  * Prevented tracking of merged Javascript files metadata (and re-merging them) in production mode
  * Fixed incorrect memory usage calculation in Integration tests
  * Fixed issues in performance test scenarios
  * Fixed inability to delete customer's address on frontend
  * Fixed incorrect "No file chosen" message, shown after a successful upload of product image placeholder in Chrome
  * Made "Print Order" page to display theme-customized logo instead of a default one
  * Fixed other bugs in management of categories, products, product attributes, product templates (attribute sets), customers, taxes and tax rules
  * Product creation fixes:
     * Fixed inability to search and select category in IE8, including via mouse
     * Fixed usability of category search tree field to not hang after entering each symbol
     * Fixed inability to select/change attribute for product variations (configurable product) in IE8
     * Fixed field highlighting and error placement after validation on "Create Category" dialog
     * Fixed validation of parent category to be a require field
     * Fixed bug with displaying special price for a product on frontend after the product template is switched to one without special price
     * Fixed incorrectly displayed regular price for products with catalog price rule applied
     * Fixed inability to upload an image in the WYSIWYG editor
     * Fixed Javascript error, when replacing variation image in IE
     * Fixed Javascript errors in production mode
     * Unified look of all the popups
     * Removed "Add Attribute" link, when Product Details section is collapsed
     * Fixed issue with product template selector menu, which was not shown
  * Shopping Cart Price Rule fixes:
     * Fixed inability to save Shopping Cart Price Rule with Coupon = "No Coupon"
     * Fixed saving of Shopping Cart Price Rule having specific coupon
     * Fixed absence of fields on rule information tab
  * Payment fixes:
     * Fixed PayPal Pro (formerly Website Payment Pro) to pass shipping address in request to PayPal service
     * Fixed triggering of a credit memo creation when Charge Back notification comes from PayPal
     * Fixed emptying shopping cart after canceling on PayPal page
     * Fixed error "10431-Item amount is invalid." when a Shopping Cart Price Rule is applied in Express Checkout Payflow Edition
     * Fixed PayPal Payments Pro Hosted Solution to send "City" in place of the "State" parameter for UK and CA, if Region/State is disabled in the configuration
     * Fixed ability to invoice order without providing payment using Google Checkout API
     * Fixed validation of a Discover card number
     * Fixed issues in configuration for payment methods: absence of "Sort Order" field, excessive fields with class name as a value, issues with form elements and groups
     * Fixed exception, when using 2-level cache backend
     * Fixed inability to place order with PayPal Payments Advanced and Payflow Link payment methods
  * VDE fixes:
     * Removed full file path information from the title of an uploaded store logo
     * Fixed bugs in VDE with color picker, file uploader, themes assigning, Remove and Update buttons for custom CSS
     * Fixed hint for the Scripts palette in dock
     * Fixed inability to upload more than one Javascript file
     * Fixed bug with improper scaling images in UI
     * Fixed inability to preview and edit a physical theme
     * Fixed inability to delete a block
     * Fixed inability to delete a background image
     * Fixed preview of a virtual theme in production mode
     * Fixed JavaScript tests
     * Fixed bugs with inline translation
     * Added validation to the theme name field
     * Fixed absence of error message in IE, when uploading unsupported file type in Theme Javascript
     * Fixed corrupting of a `custom.css` file, when saving Custom CSS text
     * Fixed wrong design of "Chain" and "Reset to Original" image buttons
     * Fixed color picker, being cut off by small browser window
     * Fixed bottom indent in "Quick Styles" panel - it was too big
     * Fixed corrupted layout of "Image Sizing" tab, when resizing browser window
     * Fixed "We found no files", being displayed all the time in the form to upload theme Javascript files
  * API fixes:
     * Added missing fields to SOAP API
     * Fixed inability to set default customer address
     * Fixed error message, when saving a customer with wrong email address
     * Fixed inability to create partial order shipment
     * Fixed absence of special price information in return of `productGetSpecialPrice` method
     * Fixed incorrect content length of server response
     * Fixed absence of `productAttributeAddOption`, `catalogProductAttributeUpdate`, `catalogProductAttributeTypes`, `catalogProductAttributeRemoveOption` and `catalogProductAttributeInfo` methods with WS-I mode enabled
     * Fixed absence of `catalogProductDownloadableLinkList` method
     * Fixed bug with incorrect credit memo creation when order item id is set
     * Fixed bug with inability to update stock status or price of multiple products in one call
     * Fixed `shoppingCartOrderWithPaymentRequestParam` method description in WSDL
     * Fixed inability to add comment to order without changing order status
     * Fixed incorrect redirect after SOAP POST request
     * Fixed inability to end session by `endSession` method
     * Fixed Save button for Web Services User Roles in backend
     * Fixed memory issue due to incorrect filtering for the single field in `salesOrderList` method
     * Fixed bug with getting product information by numeric SKU
     * Fixed inability to add configurable product by `cart_product.add` method
     * Fixed ACL initialization in WebApi
     * Fixed bug with the same cache key used for both WS-I and non WS-I WSDL files
     * Fixed bug with updating shopping cart by `shoppingCartProductUpdate` method
     * Fixed product id validation in `shoppingCartProductAdd` method
     * Fixed absence of tracking number in `salesOrderShipmentInfo` method response
     * Fixed absence of tracking number in shipment transactional email

* Product creating & editing:
  * Added ability to control base text styling without WYSIWYG when editing description fields
  * Added validation for price and quantity fields
  * Removed category suggest limit
* Product template management:
  * Automatically update Product Template when modifying structure in Create Product flow
  * Improvements to change attribute set functionality
* Refactored JavaScript to use JQuery library:
  * Refactored the following pages: catalog tags, one page checkout, multishipping checkout, gift options, gift messages (across the board)
  * Converted jQuery popupwindow.js plugin to a jQuery widget
  * Replaced Prototype code for Switch/Maestro and Solo credit card with jQuery widget
  * Replaced Prototype Validation with jQuery validation plugin
  * Converted credit card payment tool tip to jQuery in all themes
  * Removed legacy JS files from all themes
* Various improvements in look & feel of backend UI:
  * Styling of components: catalog, sales, customers, reports, CMS, newsletter
  * Generic styling: grids, popup windows
  * Changes to support IE browser
* Enhancements in "suggest" JavaScript widget:
  * Ability to delete selected item using keyboard
  * Ability to display all available search items, if "recent items" is empty
  * Fixes of behavior of currently selected elements and "spinner"
  * Display "No Records" message in suggest widget if all items already selected
  * Fixed suggest widget to no longer show deleted items
* Improved `Magento_Test_Helper_ObjectManager` in unit tests to discover types of constructor arguments
* Removed workaround of unsetting objects referenced in `tearDown()` of integration tests
* Updated Menu and Navigation layout, including redesigned backend menu item System -> My Account
* Made store address format consistent with format of shipping origin address
* Added ability to navigate directly to a section in backend system configuration, with corresponding accordion expanded
* Removed some of unnecessary coupling between several modules
* General improvements to unit and integration test code coverage, as well as compliance with coding standards
* Application framework:
  * Implemented ability to compress/decompress data in a cache backend
  * Verified ability to disable in configuration triggering of system upgrade
  * Abolished code pools and the mechanism of overriding files using include\_path (without alternative)
  * Implemented segmentation of cache by types -- ability to assign separate cache configuration per type. Reviewed and verified possibility to isolate configuration cache segment
  * Segregated application configuration into several layers. Primary configuration is used by the object manager and loaded before application is initialized
  * Instead of `Zend\Di`, implemented `Magento\ObjectManager` library that has less features and suits Magento application needs better in terms of performance
  * Introduced "context" object as dependencies for super-classes (`Mage_Core_Model_Abstract`, `Mage_Core_Block_Abstract`, etc) to reduce complexity of their constructors' API
  * Implemented tools for pre-populating all auto-generated proxy and factory classes, used by dependency injection framework
  * Replaced "developer" mode with general "mode", that has 3 states: developer, default, production
  * In "production" mode, the application will not invoke fallback for static view files (images, CSS-files, JavaScript). Instead, it will assume that they are already placed in a fully qualified location. Added tools for populating static view files from `app` directory into `pub/static`
  * Introduced support for Twig templating
    * template rendering, including phtml, was abstracted into a 'Template Engine' to make support for other template engines easier
    * included Magento-specific Twig functions and filters
    * phtml templates can now only access public methods of the corresponding Block class
    * ability to define dependencies on data provided by a service that is then made available to the templates -- eliminates some of the code in Blocks
  * Introduced support for webhooks and callbacks: outbound HTTP requests for notifications and real-time integrations
  * Added ability to define options for System Configuration select fields in XML: static options are defined inline, dynamic options can reuse data provided by a service
* Moved product business logic found in blocks into `Mage_Catalog_Service_Product` to consolidate logic into a single structure that both controllers and web services can invoke
* Converted product view page to demonstrate use of Twig templates and services
* Updated shipping carrier `collectRates` logic to support remote callbacks and converted the FedEx shipping carrier to comply with the same interface
* Added webhook support for the following topics: `customer/created`, `customer/updated`, `customer/deleted`, and `order/created`
* Visual design editor:
  * Ability to view all CSS-files of a theme
  * Ported numerous features of visual design editor from Magento Go 1.x to Magento Core 2.x: style editing, managing catalog images
  * Various improvements in UI
  * Improved image sizing functionality
  * Improved test coverage
  * Ability to launch physical themes, including workflow preview mode and workflow design mode
  * Ability to duplicate existing themes for customization
* GitHub requests
  * [#162](https://github.com/magento/magento2/pull/162) -- classmap needs to be prepended to autoloader stack to have any effect
  * [#179](https://github.com/magento/magento2/pull/179) -- fix that makes `Mage_Install` compatible with the new version of SimpleXml
  * [#180](https://github.com/magento/magento2/pull/180) -- fixed `getBaseUrl()` when type was injected via setter
  * [#203](https://github.com/magento/magento2/pull/203) -- fixed problem with login in to backend area on php 5.4
  * [#216](https://github.com/magento/magento2/pull/216) -- explicit nullification of `$_store` in `Mage_Core_Model_Sore_Storage_Db->_initStores()`
  * [#220](https://github.com/magento/magento2/pull/220) -- make topmenu HTML editable by an event
  * [#221](https://github.com/magento/magento2/pull/221) -- changed minimum required PHP version from PHP 5.2.3 to 5.3.3
* Bug fixes:
  * Restored missing Paypal configuration options
  * Fixed numerous display issues on the following pages: admin login, product management, category management, CMS poll, VDE, tax, shipping
  * Fixed XSS vulnerability related to customer data & bundle options
  * Fixed "Preview Theme" functionality
  * Fixed JS File upload problem with Internet Explorer
  * Replaced `truncateOptions` function in `varien/js.js` with inline widget
  * Fixed broken XPaths in `SystemConfiguration.yml`
  * Fixed jQuery metadata plugin's data attribute scanning for validation
  * Synchronized default value of `quantity_and_stock_status` with Stock Availability control
  * Fixed display of G.T. Purchased column in Order grid when order in non-default currency
  * Fixed Foreign Key support for MS SQL
  * Fixed "Create Customer" functionality on New Order screen
  * Restored State/Province field to Review Order page
  * Fixed Add New Tax Rate functionality
  * Fixed problem with displaying New Shopping Cart Price Rule tab
  * Fixed problem of configurable product options getting lost when adding product to wishlist
  * Fixed UPS Shipping label printing
  * Fixed performance issue with Catalog Management
  * Fixed input file type validation when importing customers
  * Fixed custom product placeholder image display
  * Added missing files referenced by `quick\_style.css`
  * Fixed validation error messaging and message placement
  * Fixed access problem to SOAP/XML User and Roles pages
  * Fixed access problem created when editing your own permissions
  * Several fixes for problems with cleaning cache in tag scope
  * Fixed invalid link problem in Gift Card email
  * Fixed problem with deleting selected product category after changing attribute set
  * Fixed theme management for Windows by adopting `Magento_Filesystem` abstraction to access directories
  * Fixed cart rendering in case of empty cart
  * Remove duplicate "Link to Store Front" link from admin, made obsolete by "Customer View" link
  * Removed "Flat Rate" from pre-installed shipping methods

* Implemented functional limitation that restricts max number of catalog products in the system
* Implemented cache backend library model for MongoDB
* Converted some more grids in backend from PHP implementation to declarations in layout
* Removed `app/etc/local.xml.additional` sample file, moved detailed description of possible configuration options to documentation
* Refactored `Mage_Core_Model_EntryPointAbstract` to emphasize method `processRequest()` as abstract
* Moved declaration of functional limitations to the nodes `limitations/store` and `limitations/admin_account`
* Bug fixes:
  * Fixed JavaScript and markup issues on product editing page in backend that caused erroneous sending of AJAX-queries and not rendering validation messages
  * Fixed issues of application initialization in cases when `var` directory doesn't have writable permissions. Writable directories are validated at an early stage of initialization
  * Fixed array sorting issues in test `Magento_Filesystem_Adapter_LocalTest::testGetNestedKeys()` that caused occasional failures

* Application initialization improvements:
  * Removed application initialization responsibility from `Mage` class
  * Introduces entry points, which are responsible for different types of requests processing: HTTP, media, cron, indexing, console installing, etc.
  * New configuration classes are introduced and each of them is responsible for specific section of configuration
  * Class rewrites functionality removed from `Mage_Core_Model_Config` model. DI configuration should be used for rewriting classes
* Added ability to configure object manager with array in addition to object and scalar values
* VDE improvements:
  * Theme CSS files viewing and uploading/downloading of custom CSS file
  * Updated styling of VDE Tools panel
* Refactored various components to an analogous jQuery widget:
  * Refactored components:
    * Category navigation
    * Products management and gallery
    * Send to friend
    * Sales components, including orders and returns
    * Retrieve shipping rates and add/remove coupon in shopping cart
    * Customer address and address book
    * Customer wishlist
    * "Contact Us" form
    * CAPTCHA
    * Weee
  * New tabs widget is used instead of `Varien.Tabs`
  * Refactored `Varien.dateRangeDate` and `Varien.FileElement`
  * Replaced `$.mage.constants` with jQuery UI `$.ui.keyCode` for keyboard key codes
* Refactored configurable attribute, category parent and attribute set selectors to use suggest widget
* Bug fixes:
  * Improvements and bug fixes in new backend theme
  * Image, categories attributes and virtual/downloadable fields are displayed on Update Attributes page, where they shouldn't be present
  * Undefined config property in `reloadOptionLabels()` function in `configurable.js` (Chrome)
  * Impossible to edit existing customer/product tax class
  * Incorrect format of customer's "Date of Birth"
  * Theme preview images are absent in VDE
  * Search by backslash doesn't work for Categories field on product creation page
  * Impossible to assign a category to a product, if category name contains HTML tag
  * Incorrect URL generated for logo image

* All-new look & feel of backend UI -- "Magento 2 backend" theme
  * This theme includes "Magento User Interface Library" -- a set of reusable CSS-classes, icons and fonts
* Theme editing features (in backend UI):
  * Ability to view static resources, such as CSS and JavaScript files, which are inherited by virtual themes from physical themes and application, and library
  * Ability to upload and edit custom CSS/JavaScript code assigned to a particular virtual theme
  * Ability to manage image and font assets for virtual themes
  * The uploaded or edited theme resources are used in page generation
  * Ability to rename virtual themes
  * Physical themes are read-only
* Visual design editor:
  * Ability to enter a "Design Mode" directly from the list of "My Customizations" in "Design Gallery"
  * Updated styling of theme selector and VDE toolbars
* Added functional limitations (managed through configuration files):
  * Ability to limit maximum number of store views in the system
  * Ability to limit maximum number of admin user records in the system
* Introduced mechanism of early discovery of memory leaks in integration tests:
  * Added ability to integration testing framework to detect usage of memory and estimate memory leaks using OS tools outside of PHP process
  * Also ability to set memory usage threshold which would deliberately trigger error, if integration tests reach it
* Refactoring in integration tests:
  * Broke down `Magento_Test_Bootstrap` into smaller testable classes
  * Minimized amount of logic in `bootstrap.php` of integration tests
  * Factored out memory utility functions from memory integration tests into a separate helper
  * Removed hard-coding of the default setting values from `Magento_Test_Bootstrap` in favor of requiring some crucial settings
  * Fixed integration tests dependency on `app/etc/local.xml`, changes in which were involved into the sandbox hash calculation `dev/tests/integration/tmp/sandbox-<db_vendor>-<hash>`
* Improvements in JavaScript widget "Suggest" (`pub/lib/mage/backend/suggest.js`):
  * Added ability to set callback for "item selection"
  * Added ability to provide a template in widget options
  * Implemented "multiple suggestions" ability directly in this widget and removed the "multisuggest" widget
* Converted several grids in backend from PHP implementation to declarations in layout
* Other various improvements:
  * Factored out logic of handling theme images from `Mage_Core_Model_Theme` into `Mage_Core_Model_Theme_Image`
  * Ability to filter file extensions in uploader component
  * Publication of resources linked in CSS-files will only log error instead of crashing page generation process
* Bug fixes:
  * Fixed several memory leaks in different places, related with dispatching controller actions multiple times in integration tests and with excessive reference to `Mage_Core_Model_App` object
  * Fixed integration test in `Mage_Install` module that verifies encryption key length
  * Fixed DHL shipping carrier declaration in config that caused inability to use it with shopping cart price rules
  * Fixed issues in generating of configurable product variations when the button "Generate" is invoked second time
  * Fixed an error that caused inability to create a theme in Windows environment in developer mode
  * Fixed various errors in JavaScript tests for visual design editor
  * Fixed broken "Edit" link on backend product management page