2.0.0.0-dev30
* Framework changes
  * Added dependency injection of framework capability
    * Adopted Zend\Di component of Zend Framework 2 library
    * Implemented object manager in Magento application
    * Refactored multiple base classes to dependency injection principle (dependencies are declared in constructor)
  * Themes/View
    * Implemented storing themes registry in database, basic CRUD of themes, automatic registration of themes in database from file system out of the box
    * Renamed `Mage_Core_Model_Layout_Update` into `Mage_Core_Model_Layout_Merge`, the former becomes an entity domain model. Similar changes with `Mage_Core_Model_Resource_Layout` -> `Mage_Core_Model_Resource_Layout_Update`, `Mage_Core_Model_Layout_Data` -> `Mage_Core_Model_Layout_Update`
* Performance tests
  * Improved indexers running script `dev/shell/indexer.php` to return appropriate exit code upon success/failure
  * Implemented running the same performance scenario file with different parameters
  * Slightly refactored framework class `Magento_Performance_Testsuite_Optimizer` for better visibility of algorithm
* Visual design editor
  * Added ability to remove elements in editor UI
  * Revised history of changes VDE toolbar and algorithm of "compacting" operations (moving, removing elements) as a layout update XML
  * Added selection of themes to VDE launcher page
* Refactored JavaScript of some UI elements to jQuery:
  * "Simple" and "configurable" product view pages
  * "Create Account" page
  * "Shopping Cart" page
  * CAPTCHA
  * Newsletter subscription
* Tax management UX improvements
  * Split Basic and Advanced Settings for Tax Rule Management UI
  * Moved the Import/Export functionality to Tax Rate page
  * Moved Tax menu to System from Sales
* Implemented the editable multiselect JavaScript component
* Added mentioning sitemap in `robots.txt` after generation
* Removed creation of DB backup in integration testing framework
* Fixed logic of order of loading ACL resources in backend
* Fixed JavaScript error during installation when one of files in `pub/media` is not writable
* Fixed structure of legacy test fixtures that allowed ambiguous keys in declaration
* Fixed inability to restore admin password when CAPTCHA is enabled
* Various minor UX fixes (labels, buttons, redirects, etc...)
* GitHub requests:
  * [#59](https://github.com/magento/magento2/issues/59) -- implemented handling of unexpected situations in admin/dashboard/tunnel action
  * [#66](https://github.com/magento/magento2/issues/66)
    * refactored ImageMagick adapter unit test to avoid system operation
    * simplified unit testing framework -- removed unused classes, simplified handling logic of directory `dev/tests/unit/tmp` and removed it from VCS
  * [#73](https://github.com/magento/magento2/pull/73), [#74](https://github.com/magento/magento2/pull/74) -- fixes in docblock tags
  * [#75](https://github.com/magento/magento2/pull/75), [#96](https://github.com/magento/magento2/pull/96) -- fixed translation module contexts in a few places
  * [#80](https://github.com/magento/magento2/issues/80) -- fixed some runtime errors in import/export module
  * [#81](https://github.com/magento/magento2/issues/81) -- removed usage of "remove" directive in places where it is overridden by setting root template anyway
  * [#87](https://github.com/magento/magento2/issues/87) -- changed paths of files to include from relative into absolute in `dev/shell/indexer.php` and `log.php`
  * [#88](https://github.com/magento/magento2/issues/88) -- provided comments for values that can be configured in `app/etc/local.xml` file
  * [#90](https://github.com/magento/magento2/issues/90) -- slightly optimized logic of implementation of loading configurable product attributes
2.0.0.0-dev31
* Themes:
  * Eliminated "skins" as a concept. Skins and themes are consolidated into one entity and now called just "themes"
  * New themes out of the box are named by their distinctive characteristic (thus, "default" is renamed to "demo")
  * Revised logic of handling "virtual" (which are present in database registry only, but not in the file system) VS "physical" themes
* Dependency injection:
  * Reduced memory leaks of integration tests caused by introduction of object manager
  * Added compiler for dependency injection definitions and ability to run Magento application with the compiled definitions
* `Mage_Adminhtml` breakdown:
  * Implemented XML-schema for system configuration form declaration files (`etc/system.xml` in each module), refactored them to comply with schema and relocated to `etc/adminhtml/system.xml`
  * Removed remnants of `Mage_Admin` module (replaced with `Mage_Backend` and others)
  * Removed multiple obsolete models in `Mage_Adminhtml` module -- replaced with more generic classes in `Mage_Backend` (less classes overall)
* Replaced `Magento_Test_TestCase_ObjectManagerAbstract` in unit testing framework by a helper in test suite
* Made the PHP coding standard test (`Php_LiveCodeTest`) treat white/black lists as `glob()` patterns and verify correctness of the actual patterns
* Consolidated `upload_max_filesize` logic into one helper
* Bug fixes:
  * Fatal error on Product Tags and Customers Tagged Product (on product editing page in backend)
  * Trailing space in date caused by new "date picker" JavaScript component
  * Impossibility to add product to an order in backend in IE8
  * Not picking a template on customer "Shopping Cart" page at the backend
  * "Use Default" checkbox is checked again after saving multiselect attribute config if option does not contain value
  * "Single Store Mode" UI fixes
  * Runtime error when previewing transactional email template
  * Incorrect redirect after applying filter in grids
  * Various asynchronous placement of profiler keys
  * Various fixes in Taxes backend UI
  * Various fixes in translation literals
2.0.0.0-dev32
* Improved product edit workflow:
  * Introduced Category Assignment control on "General" tab
  * Eliminated attribute preselection screen
  * Base image assignment control moved to "General" tab
  * Base inventory attributes controls displayed on "General" tab. Values of the attributes are synchronized between "General" and "Inventory" tabs
* Improved static code analysis tests to verify existence of paths specified in white/black lists
* Reduced memory usage by integration tests by automatic cleaning properties of test classes
* Added migration tool `dev/tools/migration/themes_view.php` for replacing old `{{skin}}` with new `{{view}}` placeholders
* Changed handling of exceptions, produced by non-existing view files, to not break whole page
* Removed empty locale files
* Bug fixes:
  * Page with tracking information absent, if shipping labels integration is used
  * Category is not displayed on frontend with "Use Flat Catalog Category" option enabled
  * Exception on "Coupons Usage Report" page after upgrade from Magento 1.x
  * Exception on "Most Viewed Products" page after upgrade from Magento 1.x
  * Quick search produces error, if searching for a product with an attribute that has "Use In Search Results Layered Navigation" option set to "Yes"
  * Exception on "Add/Edit Customer" page when Magento profiler with html output is enabled
  * Can't duplicate downloadable product with sample file attached
  * Product Type dropdown on "Add Product" page doesn't work in IE9
  * Various issues related to adding/editing product
2.0.0.0-dev33
* Improved Themes functionality to meet the following requirements:
  * Magento instance doesn’t crash in case there’re no themes at all
  * Features like selection of themes in system configuration, custom theme selection in Custom Design, CMS pages, Products and Categories can work without themes. They use base view files only.
  * Virtual themes work in the same way as the non-virtual (which are present in file system) though they additionally have inheritance property. Changes were made in theme switcher, in fallback mechanism, in widgets etc.
  * Non-virtual themes are being added to DB during installation
  * Application framework uses theme id as identifier instead of theme code
* Refactored a variety of report grids in backend (admin) to make them configurable through layout, rather than hard-coded.
* Removed obsolete modules:
  * `Mage_XmlConnect`
  * `Mage_Dataflow`
* Significantly changed Logging subsystem:
  * `Mage_Core_Model_Logger` class is responsible for logging
  * Changes are made to comply with DI paradigm
  * Custom logger in `Mage_Backend_Menu` subsystem is removed due to usage of regular one
* Changes made in autoload process
  * Fixed autoload to prevent `class_exists()` from causing fatal error
  * The `Magento_Autoload` library was divided into 2 classes: `Magento_Autoload_IncludePath` is responsible for loading from include path, `Magento_Autoload_ClassMap` from a class map. Stacked "class map" loader on top of "include path" loader in application bootstrap.
* Implemented new jQuery form widget. Its responsibility is to prepare form for submission (change form attributes if needed)
  * Replaced usage of different instances of `varienForm` with a new form widget (`productForm`, `categoryForm`, instances of type "onclick declaration", "as child component", "instantiation only")
  * Replaced prototype validation with jQuery analog
  * Additionally implemented form widget in different modules (CMS, Customer, Backend, Sitemap, DesignEditor, Tags, SystemEmail, Newsletters, ImportExport, Connect, Authorize.net)
* Minor improvements
  * Fixed css styles for validation messages in different parts of the system
  * Removed usage of `jquery-ui-1.8.21.custom.css`
  * Updated versions of jQuery and jQuery-UI on backend
  * Updated Magento trademark and copyright labels at the bottom of pages: changed legal entity name to X.Commerce, Inc, made translation engine pick them up
  * Improvements made in indexers to stabilize tests. Fixed wrong initialization order of indexers that sometimes caused failure of reindexing all at once
* Bugfixes:
  * Set correct order's data change state during voiding the order
  * Set translator to pick up status labels in drop-down in "Shopping cart price rule" admin grid
  * Fixed an issue in console installer that initialized application in such a way, that it could not load certain event area.
  * Fixed incorrect loader image source in backend during new tax rule creation
  * Fixed JS error in IE with creating products via floating toolbar
  * Fixed image save url during uploading product's images
  * Added permission check for editing shipping and billing addresses during viewing the order
  * Changed saving of order comments from backend. Comment is saved even without status change
  * Added additional validation into `quickCreateAction` of `Mage_Adminhtml_Catalog_ProductController` to prevent saving new product with any id using firebug
  * Fixed JS errors in Authorize.net Direct Post submodule
  * Fixed JS errors in split button on creating product
  * Fixed errors in poll's list template in backend
2.0.0.0-dev34
* Test Framework:
  * Created `CodingStandard_ToolInterface` - new interface for coding standard static tests. Refactored `CodeSniffer` class as an implementation of the interface
  * Fixed DB isolation in integration tests after themes refactoring
  * Minor test fixes
* Changes in product creation process
  * Added ability to change product type "on the fly" depending on selected options
  * Added ability of new category creation on "General" tab
  * Moved "Associated Products" tab contents to collapsible block on "General" tab for configurable products
  * Visual enhancement made for base image and Virtual/Downloadable checkbox
  * Refactored implementation of associated products in backend (admin) to make them configurable through grid layout, rather than hard-coded.
  * Enhanced product variation matrix for configurable products
  * Changed "Apply To" feature in product attributes management due to changes in product creation process
* Fixed XSS vulnerabilities in `Mage_Wishlist_IndexController`, `Mage_Adminhtml_Block_Review_Edit_Form`, `Mage_Catalog_Product_CompareController`
* Bug fixes
  * Fixed error on `Catalog -> Google Content -> Manage Items page`
  * Fixed bug with "Update Attributes" mass action for products on backend caused by setting incorrect inheritance of `Mage_Adminhtml_Helper_Catalog_Product_Edit_Action_Attribute`
  * Added additional validation of "quantity" field to fix issues with inventory during product saving
  * Added additional validation into `EAV` models to forbid creation of two products with the same unique multi-select attribute
2.0.0.0-dev35
* Enhancements of System Configuration:
  * Introduced new items that can be configured in the similar to Magento 1.x way, using xml files: nested groups in System Configuration form, group dependencies, intersected dependencies
  * Enhanced handling of field dependencies, required fields functionality
  * Changed Configuration structure to be represented as an object model
  * Improved performance of configuration rendering
* Implemented new API in `Mage_Webapi` module
  * Removed `Mage_Api` and `Mage_Api2` modules as obsolete API implementation
  * Added support of REST and SOAP 1.2 [WS-I 2.0](http://ws-i.org/Profiles/BasicProfile-2.0-2010-11-09.html) APIs
  * Introduced versioning per API resource. The application will support old version(s) of API after upgrading to not make old API requests fail
  * Unified implementation for all API types
  * Significantly simplified coverage of new API resources
  * Added two-legged `OAuth` 1.0 for REST authentication
  * Added WS-Security for SOAP authentication
  * Added automatic generation of REST routes and SOAP WSDL on the basis of API class interface and annotations
  * Introduced generation of API reference from annotated WSDL (for SOAP API)
* Introduced service layer. Business logic should be implemented once on service layer and could be utilized from different types of controller (e.g., general or API)
  * Business logic is implemented on service layer to be utilized from different types of controller (e.g., general or API)
  * Implemented abstract service layer class - `Mage_Core_Service_ServiceAbstract`
  * Implemented concrete service layers for customers, orders and quotes. Appropriate duplicate logic has been eliminated from controllers and API
* Improved validation approach:
  * Added support of describing validation rules in a module's configuration file - `validation.xml` in the module's `etc` directory
  * Added `Mage_Core_Model_Validator_Factory`
  * Added new validators to Magento Validator library
  * Added `Magento_Translate_Adapter` as a translator for the validators
  * New approach is utilized in `Mage_Customer`, `Mage_Eav` and `Mage_Webapi` modules
* Added profiling of DB and cache requests
* Minor Improvements:
  * Added an ability to choose the image for logo and upload it from backend web-interface
  * Added notification in backend in case of product SKU change
* Bug fixes:
  * Fixed bug in `Mage_Adminhtml_Sales_Order_CreditmemoController` that changed item’s stock status after each comment
  * Removed `Debug` section in `System -> Configuration -> Advanced -> Developer` for default configuration scope
  * Fixed bug in `Mage_Tax_Model_Resource_Calculation` that prevented placing order with two tax rules having the same rate
  * Removed `Url Options` section in `System -> Configuration -> General -> Web` for website and store configuration scope
  * Changed backend template for UPS shipping provider to fix translation issue
* Fixed security issue - set `CURLOPT_SSL_VERIFYPEER` to `true` by default in cUrl calls
* Added `Zend/Escaper`, `Zend/I18`, `Zend/Validator` ZF2 libraries
* Updated `Zend/Server` and `Zend/Soap` libraries to ZF2 versions
2.0.0.0-dev36
* Visual design editor refactored
  * VDE controls and VDE actions moved to backend area
  * Added IFRAME that allows to navigate through frontend pages in Navigation Mode and to modify blocks position in Design Mode
  * Inline JavaScript code is disabled in Design Mode
  * Store selection is performed on saving instead of reviewing the theme. List of all available stores is shown during assigning the theme to a store
  * `System -> Design -> Editor` page divided into two tabs:
    * "Available Themes" tab contains all available themes
    * "My Customizations" tab contains themes customized by the store administrator and consists of area with themes assigned to stores and area with unassigned themes
  * Added `vde` area code and `Mage_DesignEditor_Controller_Varien_Router_Standard` to handle requests from design editor
  * Added ability to use custom layout instance in controllers to use specific layout, when design editor is launched
* JavaScript updates
  * Replaced `varienTabs` class with an analogous jQuery widget
  * Displaying of loader during AJAX requests became optional
* Removed `dev/api-tests` directory added by mistake
* Bug fixes
  * Impossible to login to backend with APC enabled. Added call of `session_write_close()` in the session model destructor
  * Unnecessary regions shown when no country is selected in `System -> Sales -> Shipping Settings -> Origin`
  * Fixed various bugs caused by virtual themes implementation and other themes improvements
2.0.0.0-dev37
* Refactored a variety of grids in backend (admin) to make them configurable through layout, rather than hard-coded. The following classes were affected (converted): `Mage_User_Block_User_Grid`, `Mage_User_Block_Role_Grid`, `Mage_Adminhtml_Block_System_Design_Grid`, `Mage_Adminhtml_Block_Catalog_Product_Attribute_Set_Grid`, `Mage_Adminhtml_Block_Newsletter_Problem_Grid`, `Mage_Adminhtml_Block_Backup_Grid`, `Mage_Adminhtml_Block_Tax_Rate_Grid`, `Mage_Adminhtml_Block_System_Store_Grid`, `Mage_Adminhtml_Block_System_Email_Template_Grid`, `Mage_Adminhtml_Block_Sitemap_Grid`, `Mage_Adminhtml_Block_Catalog_Search_Grid`, `Mage_Adminhtml_Block_Urlrewrite_Grid`, `Mage_Adminhtml_Block_System_Variable_Grid`, `Mage_Adminhtml_Block_Report_Review_Customer_Grid`, `Mage_Adminhtml_Block_Report_Review_Product_Grid`
* Modified behavior of configuration merging. Each config file can be separately validated against DOM schema.
* Moved `Mage_Adminhtml_Utility_Controller` to `Backend` and changed all child classes
* Changes in Profiler system:
  * Created separate component for handling Profiler Driver selection logic
  * Extended `Magento_Profiler::start()` calls with tags as second argument
* Bug fix - Added additional validation into `Mage_Adminhtml_Catalog_CategoryController` to prevent saving new category with any id using firebug