- Fixed a P2P messaging issue when large packets were sent, preventing some multiplayer games from working

- Remote management of your games library through the web or mobile device
- Added UI to redeem Steam wallet vouchers sold by GameStop
- Fixed download issues with new content system
- Fixed crashes related to Steam Workshop file management

- Comment Notifications - the inbox icon in the upper-right corner of the Steam client will now notify you when someone has posted a comment on one of your Steam Community items, or when someone else replies to an item you recently commented on. Currently profile, screenshots, videos, recommendations, and workshop items are supported.
- Added support for new retail install disc type
- Added games update error reporting to improve download stability
- Added code to regenerate protected binaries that are approaching expiration when a game is launched.

- Enabled 'Paste' on context menu of the password field at login time.
- Added keyboard navigation to friends list and library views while typing in filters.
- Fixed web control briefly jump backwards when scrolling causing a very jittery experience.
- Fixed web combo-box controls not closing when the underlying web control is moved.
- Fixed web control not rendering error pages.
- Fixed the 'X' button for clearing text entry fields (used in text filters) overlapping the keyboard layout icon when present.
- Fixed lower strip of web control sometimes not updating while scrolling

Additions:
- Display certificate status when viewing secure web content (thanks to Paul Mutton).
- Updated web engine to newer version of Chromium Embedded Framework.
- Added ability to set homepage for overlay web browser via settings dialog.
- Added support for "about:blank" for the Overlay Web Browser home page.
- Added filter for friends list.
- Added session playtime and total playtime to the overlay.
- Improved product key activation process in case CD-key was previously registered.

Fixes:
- Addressed file upload errors related to uploading mods via Skyrim's Creation kit.
- Fixed game properties dialog cutting off tabs for some games.
- Fixed hardware survey not prompting for new Steam installs.
- Limit tooltip height for workshop files.
- Fixed regression showing tooltips/hover state when the mouse is over a Steam window but occluded by another applications window.
- Fixed regression disabling font smoothing in web views in prior beta update.
- Fixed client hang when launching games or starting/pausing game downloads.
- Fixed cases where "Error 16" would be displayed when downloading some Skyrim Workshop files
- Enabled limited html5 video and audio support in the web control.
- Fixed tooltips on Web pages sometimes displaying incorrectly.
- Fixed jumps when scrolling using arrow keys in the web control.
- Fixed crash when using cut and paste in the web control after changing the logged in user

- Installscript changes for upcoming titles
- Fixed sporadic syncing issues when downloading Skyrim workshop mods
- Added link to Workshop from the game overlay for supported games
- Fixed crash on startup on machines with a certain Windows Firewall configuration

- Fixed double clicking on items in a web page not registering properly
- Fixed crash when launching TF2 on Mac OS X
- Fixed crash on library page when viewing community images
- Fixed being unable to install free store hosted 3rd party mods for some games
- Fixed crash on shutdown for Mac OS X
- Fixed sending multiplayer invites for lobby based games through the Steam client UI
- Fixed bad localization of some web loading errors

- Fixed future web pages failing to render when quickly closing one earlier
- Fixed flash videos playing after the browser is closed in the overlay
- Fixed double clicking on items in a web page not registering properly
- Fixed requesting unnecessary configuration data from backend servers

- Contact email address may be easily updated from any trusted computer; no access to prior address required
- Fixed deleting/re-downloading localized game content
- Improved size calculation for small font sizes in Thai
- Fixed Steam client hitching while receiving configuration updates
- Fixed disappearing DLC for game switched to new content system
- [Mac OSX] Fixed screenshots being triggered by 'A' key when the key was unbound

- Added notification area in the main Steam window when receiving new Steam gifts, invites or coupons
- Added tray notifications for new items & new pending gifts
- Changed most options for sending/accepting gifts to be managed from the Steam Inventory
- Fixed missing CD-Key dialog for games with multiple launch options
- Fixed cloud upload failures for some games when users are near their quota
- Fixed downloading new update while game is still running
- Fixed creating empty folders in some cases
- Fixed keeping "Do not automatically update this game" setting
- Fixed bug updating Game Settings -> Automatic Updates (New content download system only)
- Fixed creating backup folders for games with trailing spaces in their name
- Fixed reading backups for games converted to new content system

- Fixed downloading issue with "Vampire: The Masquerade"
- Fixed Steam UI hitching while downloading content
- Faster game conversion to new content system
- Made improvements to resetting account password

- Fixed game invites giving an error about running the wrong game when using the new rich presence system in a Steamworks game
- Fixed the "-applaunch" command line parameter not correctly running the game you indicated

- Display your recently uploaded workshop files in TF2's game details page
- Added framework for Steam Support to send messages directly to users
- Changed 'Add Friend' button in the friends list to point to a much-improved interface for searching for friends
- Fixed a rare threading race condition based crash when pressing TAB in games using the in-game overlay
- Fixes occasional long hangs in the Valve Hardware Survey
- Update to support upcoming Steamworks titles
- Fix screenshots sometimes uploading with the wrong dimensions

- Steamworks API updates for upcoming releases
- Screenshot Manager updates for upcoming games that provide direct screenshot support
- Fix date formatting in "last played" times for some mixed locale cases
- Allow Unicode text in secret question when set by the Steam client
- Fix for installed games in your list showing up as "uninstalled"
- Fix intermittent client lockup
- Fix games details page not always displaying screenshots for upcoming games that provide direct screenshot support
- Updates to support upcoming game releases

- Fixed high CPU usage in game library view
- Fixed switching into offline mode
- Fixed server browser for games using the HL1 engine
- Fix favorite games showing in server browser that don't respond to pings
- Fixed defragmentation if depot file is compressed by NTFS
- Fixed retail installer setting correct game language

- Fixed backup/restore for games switched to the new content system
- Fixed adding shortcuts to 3rd party games with Unicode path names
- Fixed game configuration overrides from local content servers
- Fixed stats and achievements getting out of sync with the community for users with slow internet connections
- Fixed bug where dates of friend player names weren't shown in game overlay
- Fixed crash in "Create New Account" dialog
- Fixed crash on shutdown

- Matchmaking & networking improvements for Dead Island

- Fixed "Game not available" error when starting "Sniper Elite"
- Fixed retail disc install not using all available files causing additional downloads in some cases.

- Fixed downloading Sniper Elite (Error was: missing decryption key)
- Fixed Steam hanging while creating new account
- Reduces errors uploading screenshots on slow connections
- Fixed steam://openurl and steam://openurl_external links opening black pages in the existing window in the in-client browser at times (really!)
- Fixed Cloud sync errors that could occur when games were first installed on a new machine
- Fixed checking Windows Media player version when starting trailer with external player

Features
- Initial client side support for upcoming improved content delivery system (groundwork for future performance/reliability improvements to downloads)
- Added find text in HTML pages ( CTRL+F )
- Added “copy link” option to web browser right click menu
- Added suggested friends from Facebook display in client, if you’ve linked with Facebook
- Added the ability to push screenshots to Facebook after upload
- Additional HTTP API support for Steamworks partners
- Added check so screenshots for unreleased games can only be uploaded as private in the client.
- Added Facebook info when receiving a friend invite.

Bug Fixes
- Improved responsiveness of loading web pages in the client and in-game overlay browser
- Fixed a bug confusing cached HEAD request response with GET requests in Steamworks HTTP interface
- Improved fallback to different servers if first client connection attempt is to a down server
- Fixed a bug not immediately logging off on shutdown in some cases, leaving your state online until a timeout period was passed
- Improved line breaking/wrapping for most Asian languages
- Fixed a rare crash on shutdown in the browser control
- Fixed the store and community sometimes using English in the overlay instead obeying the user's language setting
- Improved Japanese font rendering on the Store and Community for users on Windows Vista or later
- The Steam client now detects if you’re not logged into the Steam Community or Store web pages, and automatically re-authenticates
- Fix a crash occurring if a multiuser chat got enough participants with long enough names
- Ensure user is logged in properly when accessing Steam web sites from the in-game overlay
- Facebook suggested friend UI improvements
- Fixed media playback using external player
- Prevent redeeming gifts of DLC or expansion packs for users who do not own the base game
- Fix the friend aliases dialog in the case where it’s the first time you have used it for a given user.
- The friend aliases dialog now retrieves friend aliases from the server, and now works for chat participants or group members with whom you are not friends.
- Fixed screenshot UI memory leak
- Reduced memory usage after ending a game session in which a large number of screenshots were taken
- Made the screenshot manager prioritize loading screenshots that are visible rather than just loading them from newest to oldest (so you see what you've just scrolled to if you scroll around while loading)
- Fixed steam://openurl and steam://openurl_external links in web pages not only opening the link in the default browser, but also loading a blank black page in the Steam browser.
- Fixed screenshots in D3D10/11 games with B8G8R8A8 or R10G10B10A2 backbuffer formats (Fear 3, Dirt 3)
- Fixed Team Fortress 2 not being playable in certain regions

- Fixes Steam not waiting for an in-progress Cloud sync to complete before launching a game.
- Fixed parental control check for Games For Windows games
- Fixed an issue where a user with no friend and no invite sent would not be able to view and accept a pending invite.
- Fix game file validation when opted into a game beta
- Improved Steam Guard feedback for expired email codes
- Improved overlay compatibility with Direct3D 11 games using the latest D3D SDK version

- Fix browser cookies not persisting across Steam client restarts
- Windows - Fix rendering of select boxes in web control being broken
- Fix bug in local-file validation that affected some games
- Change Steam to not initialize the microphone output device when voice is used in Team Fortress 2

- Fixed rare in-game overlay crash starting up with a group chat open

No changes specified.

- Prevent Windows 7 audio ducking in games when Steam voice chat is used
- Fix a common crash caused by certain Flash using websites in the in-game overlay browser
- Increased default in-game overlay browser window size when running in a large screen resolution
- Fix a bug with Steamworks networking connections not resuming immediately when more than 4 are created at once
- Improved Steamworks networking relay connectivity fallback
- Improved messaging around disabled accounts
- Added account creation path for users who have played Portal 2 on PlayStation 3

Steam
- Changed Steam Voice chat to use the SILK voice codec
- Maximizing the Windows client should no longer prevent the user from accessing an auto-hidden taskbar
- The overlay will now automatically return to the game when accepting a friend invite
- Improved voice ducking prevention
- Fixed position of game invites in the chat dialog
- Improved handling of last modified times for cloud files.

Steam
- Minor Steamworks API improvement

New Features and UI updates

Steam Screenshots
- Added support for Steam Screenshots. Press F12 while in any game that runs the Steam Overlay to take screenshots, then publish them to your Steam Community profile, or anywhere else on the web. Each user is allotted 1 GB of Steam Cloud storage for screenshots.

Library Search capability and related navigation updates
- Added Search capability to the library for quick filtering of your list. Press Tab to move focus to and from the search field, press Esc to clear the search.
- Moved access to all library sub views (Games, Media Tools, Downloads, etc.) into the library's dropdown control

Voice quality improvements
- Changed microphone voice input from 11 kHz to 16 kHz
- Changed voice output from 8 kHz to 16 kHz
- Fixed the settings-dialog microphone test to correctly re-init the calibration client if the active voice device changes
- Reduced voice prefix buffer size from 200 to 100 ms, but increased trailing from 200 to 400 ms - reduces latency when transitioning from silence to active voice, but still should keep it from sounding like chat is cutting out mid-sentence
- Increased thresholds for voice activity detection, making it less sensitive
- Increased amount of gain applied to voice
- Changed disconnect message when a friend ends a voice call to ' has ended the call'
- Windows: Fixed microphone to reinitialize correctly if Windows signals that a device in the system has changed
- Windows: Changed voice output device for Steam to be the default communication device

Web addresses
- Added an option to display the client's URL address bar, and turned it off by default, given its limited utility
- Web views now include a "Copy Page URL" command in the context menu, to copy the page's web address to the clipboard

Game invites
- Moved game invites from friends outside of the chat stream, into their own panel in the chat dialog for improved discoverability

Account security
- Added password strength meter to the Change Password wizard
- Added a prompt to choose a new password if you've recently had Steam Support change your password on your behalf

General bug fixes
- Fixed game invites not working from lobby-based games
- Fixed games not launching automatically after resolving a cloud conflict
- Fixed download rate sometimes erroneously reporting very high speeds
- Fixed a crash on startup or when viewing Games page
- Fixed client hang which could occur while hovering on links in any HTML-based display area
- Corrected check box states in the Friends window menu to properly remain in sync
- Fixed bug where some downloadable content was not downloaded until the client was restarted
- Fixed a rare and small, but steady memory leak caused by the Steam Overlay in some full screen D3D10/D3D11 games

Steam
- Made various improvements to Recommendations:
- Made some general improvements to the algorithm to make "Similar Items" a little more similar
- Changed primary source for generated recommendations to be recent playtime rather than recent purchases, prioritizing "new to you" games (ie, games where your recent playtime makes up the bulk of your total playtime for that game)
- Fixed DLC recommendations showing for games you haven't really played yet
- Games you've recommended will now be shown on your community profile page
- Fixed friend recommendations for free games you haven't yet played to show on your recommended page just like friend recommendations for games you don't own.
- Added links to the new "Friend Activity" page to the store homepage and community home panel.
- Added Turkish translation to the Steam client
- [Windows] Chinese, Japanese, and Korean typing support in the in-game overlay, for some games
- Fixed a case where a hyperlink in chat could take you to a player’s profile instead
- Fixed community opening to your profile instead of the blotter when community is your favorite window (thanks Sir_Brizz!)
- Improved Matchmaking function performance
- Fixed starting game executables with very long command line parameters (>255 characters)
- Fixed keyboard navigation in menus
- Fix layout on server browser dialog
- Removed code for the now-ended Civilization V charity promotion
- Fixed Steam not remembering Cloud settings in certain situations.

Steam
- Fixed Steam Cloud showing as endlessly syncing for some games
- Fixed a case where Steamworks matchmaking could lose some keys set in the lobby, when running against the new matchmaking server
- Fixed an issue where some windows could appear briefly before they were ready to be shown
- Fixed game download stalling for some users when downloading games with DLC
- Windows: Fixed Steam client update stalling for some users with HSDPA modems
- Windows: Fixed compatibility for in-game overlay and games calling GetRawInputBuffer
- Windows: Improved performance of .dmp file writing on client asserts/crashes

Steam
- Updating store pages to show stats and launch options for games you own.
- Updated Speex and JPEG libraries
- Fix a memory leak when toggling the game viewed in the details view
- Fix a crash when receiving and merging updated data for stats/achievements in some situations
- Fix sometimes failing to fully recognize a game as exited for certain launcher app setups
- Fixed navigating to game guides in the store
- Fix Steam Cloud bug where users who converted from the demo to the full version of Everyday Genius: SquareLogic, Lara Croft and the Guardian of Light, or Jolly Rover would have their progress reverted to the progress they made in the demo while opted into the beta
- Fixed community chat bug
- Fixed displaying Steam Service dialog under OSX
- Fixed a couple rare crashes and added more instrumentation around potential memory corruption
- Fixed Steam API logging
- Improve tooltips support under OSX
- Added installer support under OSX for an upcoming game release

- Steam will now use the language selected in the retail installer instead of the current UI language when installing from disc
- Removed redundant names and improved displaying a large number of tabs in tabbed chat windows
- Fixed web browser layout
- Fixed tab chat dropdown menu flashing for new message in hidden chat page

Steam
- Added support for Civilization V charity promotion (not visible until Civ5's launch)

Steam
- Fix selection highlighting of hyperlink text in chat
- Compatibility fix for Steam Service and MS KB2264107 with 0xFFFFFFFF registry setting
- Fixed issue with Steam Cloud that occurs when a game is launched outside of Steam
- Compatibility fix for in-game overlay and MS KB2264107 with 0xFFFFFFFF registry setting
- Steamworks fix for matchmaking

- Fix a bug where installing a game with a demo may not initial install all content with some left to download on first launch
- Fix a bug with ISteamNetworking getting available packet size for Steamworks Partners
- Steam Cloud improvements to support save games in more cases for Steamworks Partners
- Windows: Fix a case where minidumping due to an error could deadlock the client on startup or shutdown
- Windows: Fix a memory leak that could lead to too much memory used or a crash if you remained in a busy group chat for several days

- Fixed a case where the Steam client could hang on startup for some users with unusual environment variables

New Features
- Updated friends chats to use new tabbed chat interface (see Friends tab in the Settings dialog to turn off opening in new tabs by default)
- Updated in-game overlay browser to use new tabbed browsing interface (Use Middle click on links to open-in-new-tab)
- Tabbed Browser/Chat HotKeys: Ctrl-Tab and Ctrl-Shift-Tab to switch tabs. Ctrl-W, Ctrl-F4 or Middle click to close tabs.
- Updated WebKit code for client/in-game browser (improved stability and performance on OSX, various browser fixes)
- Windows: 64 bit build of the in-game overlay (useable now with any 64bit non-Steam game you may add)
- Windows: 64 bit builds of Steamworks DLLs (for upcoming titles)

Fixes
- New non-blocking game uninstall dialog
- Improved client shutdown times
- Fix some cases of Steam becoming unresponsive for 5-10 seconds when new game updates are released
- Fixed unused game tags still showing up
- Reinstalling from a goldmaster triggers a content verification if the game is already installed
- Fixed sometimes needing to restart Steam after installing PhysX
- Changed overlay hot-key detection to not consider ctrl-shift-tab to be the same as shift-tab, thus allowing its use in tabbed chat/browsing in-game
- Fixed “hidden” achievements showing up in the game details page and overlay “so close…” ui
- Fixed a crash on shutdown
- Fixed an issue with input tab ordering in group chats
- Increased timeouts on Steam Cloud file uploads
- Fixed Rabobank payment page for iDEAL checkout not showing correctly in the Steam Client
- Fixed a bug parsing certain HTML tags inside News bodies
- Fixed top half of avatar images in chats not being right clickable for context menu
- Fixed a potential crash when failing to parse new stats/achievements data for a game
- Fixed bug/exploit with malformed www. URLs in chats
- Windows: Fixed the “alt” key sometimes sticking in the in-game overlay after an alt-tab event
- Windows: Improved overlay compatibility with some previously conflicting third party applications
- Windows: Fixes to progress bar on win7 task icon in handling paused downloads as well as finished downloads

Steam Client
- Fixed words immediately followed by a newline not wrapping properly.
- Fixed the "Login" button in the login dialog from being enabled when no text has been entered in either field.
- Fixed the "Next" button in the retrieve account wizard being enabled when no text has been entered.
- Fixed the "Next" button in the activate CD key dialog being enabled when no text has been entered.
- Improved error messages for certain purchase failures
- Fixed "multiple cache instantiation error" on game launch
- Fix crashes that could occur while typing over a selection with an IME enabled
- When receiving the “chat from new user” introduction dialog, make a click on the other correspondent’s avatar go to their profile
- Better hit testing and copy-to-clipboard behavior in chat windows
- Fixed occasional stuttering caused by unlocking achievements.
- Extended Steam Hardware Survey to now be the Steam Hardware & Software Survey

Steam Client
- Added UI to disable Steam Cloud per-game and per-account.
- Added an icon in list view for uninstalled games that support cloud.
- Steam Cloud will now download files for installed games on logon.
- Fixed Steam Cloud sync failures that occurred because of deleted files.
- Improve text hit testing in chat windows.
- Make player names in chat windows clickable, taking you to that user's profile.
- Fixed tabs in the settings dialog sometimes not drawing correctly.
- Fixed a regression that prevented steam from automatically validating and repairing damaged game caches on launch.
- Shortened the delay between launching steam and being offered offline mode in the case of no network connectivity.
- Fixes the label under the dropdown on the game properties updates page for non-cloud games.
- Shows the "cloud disabled" icon in list view for games with cloud disabled that are not installed.
- Fixes players paying mods showing up as "in-game" rather than "in-mod" in the friends window.
- Fixes the login button in the login dialog becoming enabled when the dialog is dragged after the button is pressed.
- Improves whitespace detection in chats.
- Fixes a confusing error message when attempting to back up to a directory that doesn't exist (it would tell you the disk doesn't have enough space).
- Fixes weirdness with radio buttons when pressing the 'back' key on the backup wizard.
- Fixes game manuals not opening in an external browser.

Steam Client
- Reduces bandwidth used for stats and achievements on OSX
- Improves reliability when multiple achievements are unlocked simultaneously
- Fix for possible Steam lockup when launching a game
- Added 'view game store page' option on the context menu for friends who are in a game
- Fixed steamclient.dll importing a function not available on Win2k

Steam Client
- Fixed an issue on Windows 2000 requiring the SP4 update rollup 1 package to be installed for Steam to run
- Fixed in-game overlay generating spurious D3D11 debug runtime warnings about CSSetUnorderedAccessViews when running on downlevel hardware
- Fix regression causing a crash on exit in the in-game overlay
- Small startup performance optimization to not initialize settings dialog data until needed
- Fix the you have been logged in elsewhere dialog to not leave Steam in a broken state on Cancel
- Support for a forthcoming news URL format change
- Fixed Retail not prompting for a CD key when creating a new account
- Fixed VGUI crashing when the number of panels was very large (ie, for users with huge friends/clan membership lists)
- Decreased number of VGUI panels active at once for friends list
- Decreased the time it takes Steam to launch some games
- Fixed memory leak when resizing in-game overlay web browser
- Fixed potential failure or client hang when failing talking to content server directory servers
- Fixed overlapping text for pending group invites in the friends list invites section
- Fixed error message “You don't currently have any games ready to backup..” when restoring a previous game backup
- Fixed Cloud changing last modified times on clouded files.
- Fixed the Cloud sync transfer rate display in list view
- Steamworks - Fixed case where building an installer could randomly fail due to an error in the Microsoft crypto library

Steam Client
- Win32 side support for Steam Play / Steam Cloud integration with upcoming Mac titles
- Fix a regression causing Steam to fail if installed in a path with non-ascii characters
- Fix to grant achievements based on stat progress if progress is 100% but the achievement was not previously granted
- Fix a case where opt-in free games like the Counter-Strike: Source Beta would not appear in the library view until installed.

Steam Client
- Fixed not being able to run on Windows 2000

Steam Client
- Fixed high CPU usage on some machines caused by WebKit windows running their frame loop at a fast rate even when not visible
- Fixed high CPU usage on moving a Steam window where more redrawing was occurring than was needed
- Added the ability to enable or disable DirectWrite based font-rendering in the settings dialog
- Fixed store page not being shown correctly on trying to accept an invite to a game you don't own
- Fixed some highlight styles in friends chats when selecting text
- Fixed some unneeded .mdmp file creation when launching mods
- Added back 16×16 icon support for mods, and now supporting new 32×32 icon. Mod authors should add a 32×32 icon with the same name as the 16×16 but with _big added to the end of the filename.
- Fixed potential memory corruption crash for some first time users installing from a retail install disc
- Fixed a crash on exit when requests for app icon data were still in-flight
- Fixed pause/resume button sizing in non-english languages on downloads page
- Improved hit testing on frame buttons (minimize, maximize, close)
- Improved hit testing in text entry controls
- Fixed the in-game browser hanging on maps.google.com
- Fixed custom cursors showing as no cursor in the in-game browser (custom cursors are still not supported, but the arrow cursor will now be shown at least)
- Improved error handling in the in-game browser so instead of testshell-error: you'll get a more useful error page shown in the browser window
- Additional strings and fixes for non-english languages
- Fix reconnect attempts while Friends/VAC is offline causing stuttering in the client and potentially in Steamworks games
- Fix for a very small memory leak on moving windows
- Fix bold text in the unknown url warning dialog in chats sometimes not appearing
- Throttle attempts to update clouded steam config settings to avoid excess attempts when the Cloud servers restart

- Fixed issue preventing Madballs from properly running

- Fixed not always decrypting a game on launch
- Really fixed offline mode not always working
- Fixed cases where a game would stop downloading for no reason

- Fixed offline mode not working

- Fixed registering GFW titles after preload decryption
- Fixed not getting servers in the serverbrowser on a client Steam install if you immediately launched a game rather than using the Steam server browser
- Various Steamworks fixes

- Added DirectX 11 and DirectX 10.1 support from the in-game overlay
- Fixed error 83 when launching certain games
- Fixed a crash in listen servers for games based on the Counter Strike: Source engine
- Fixed case where the in-game overlay could crash if you got a download complete notification and the app icon wasn't cached
- Fixed Steam aborting on some malformed paths instead of just failing to read the file in question
- Fixed in-game overlay input for games using raw input sometimes losing input registration

Steam Client
- Made connections to misbehaving content servers timeout and retry a new server correctly
- Fixed the client sometimes forgetting a game exists after a content update on Steam
- Fixed several rare crashes and memory corruption bugs
- Workaround for a Firefox 3.5 bug where they activate random windows after minimizing which would confuse the state of some Steam windows
- Fixed internet tab in the in-Steam ServerBrowser not updating sorting as more servers are refreshed
- Fixed the first time launch "Installing ..." dialog which is shown while installing things like DirectX for a game taking too much CPU and making the install take a long time
- Fixed the sorting of the games list to be case insensitive and fix the mini-games list to use the same sorting method as the full games list
- Fixed Change User menu option not logging you out correctly
- Fixed one case of downloads getting stuck
- Fixed a potential crash in D3D8 games switching between windowed and full screen caused by the in-game overlay
- Fixed unnecessary minidump when in offline mode
- Fixed overlay bug where opening the overlay from an in-game menu (ie, Invite Friends in a L4D lobby) could result in the overlay opening and closing immediately if you had previously used the "Close" button in the overlay itself

Steam Client
- Add D3D9Ex support for the in-game overlay (for ArmA 2)
- Fix unneeded assert/mdmp creation when Steam connection falls back to TCP
- Fix lobbies/chats trying to update metadata while disconnected from Steam servers
- View available downloadable content link on game's DLC tab now goes to game's DLC page in store
- Fix a potential memory leak with lots of friends notifications being triggered while a full screen window has covered the desktop
- Add a limit of queued friends notifications to show of no more than sixteen
- Fix a potential case of dropping input events in the in-game overlay
- Improved overlay compatibility with OSD from recent versions of RivaTuner
- Fixed Cloud sync issues when in offline mode
- Fixed filtering by a mod in the server browser making it unable to retrieve servers from the master server

Steam Client
- Improved Steam startup performance
- Fixed a crash when clicking on very long URLs in friends chat
- Fixed the in-game overlay not showing over some D3D9 games that set a texture as the render target
- Fixed a case where the overlay could go temporarily unresponsive due to using a skin that generated bad geometry
- Fixed some cases of trying to send data to Steam servers while disconnected
- Fixed chats in the overlay which have existing text from out-of-game not scrolling to the bottom by default
- Fixed log files from in-game overlay corrupting some output
- Fixed app cache download issue for users with slower connections

Steam Client
- Fixed issue where apps would not appear in the Games list

- Changed the Steam service to warn users when it's disabled
- Added Steam HD usage to the hardware survey
- Changed system information dialog & hardware survey wizard page to show before system info gathering starts
- Fixed system info summary showing the last of the text, instead of starting at the top
- Tools tab can now be opened with steam://open/tools
- Clicking on the download complete notification for a movie now opens the media tab, and a tool opens the tools tab
- Fixed server browser crash when trying to add a favorite
- Fixed the in-game overlay not capturing/blocking input in some games using buffered Win32 raw input
- Improved the reliability of reconnection attempts after a dropped connection to the friends/VAC servers
- Fixed locking and unlocking of group chats
- Fixed incorrect reporting of rate in bandwidth graph dialog
- Fixed potential crash on game launch
- Fix potential issues during screen resolution change
- Improved URL detection in friends chats to
- Fix memory leak in some Steamworks apps
- Fixed a bug where if you had received multiple gifts or guest passes you may only see a pop-up notice about one of them on starting the client
- Fixed the "Failed to open key" error when trying to update Steam

- Fixed reconnect issues with chat rooms
- Fixed clients in chat rooms getting into 'ghost chats' if they disconnect and reconnect from the Steam servers
- Fixed client hang if the server browser window was closed while the "Add server" window was open
- Fixed the name of mods being played not always showing to friends
- Fixed switching between fullscreen and windowed mode in a DX7 game with the overlay enabled
- Fixed texture corruption in OpenGL games with the overlay enabled
- Steamworks: added more logging & warning info for the networking API

Steam Client
- New delivery system for Steam IM/Marketing messages
- Added support for DLC CD keys and custom install steps
- Added new features to installscript

- Several Steamworks updates
- Fixed a case where certain files would not be deleted

-Fixed crash when trying to join a game from the in-game overlay
-Fixed the in-game overlay to clear cursor clipping when activated (fixes input in Maw)

-Fixed possible case where Steam would get stuck with "Downloading starting..." when trying to download
-Added NTFS check when trying to install Empire: Total War
-Added new dialog to inform the user they failed to register a CD key because they do not own a game which is required to register the key (Empire: Total War Special Forces)
-Added more download regions for Australia
-Fixed several update news links for games going to the wrong page
-Added more information to the game launch display when first-time install steps are being ran
-Fixed HL2.exe hanging on shutdown
-Increased max width of links on game properties dialog (general tab) to match the now wider properties panel.
-Fixed the 'launching game' dialog always waiting for user input if there was update news available
-Updated localization files for dialog variable changes (fixes %s1 appearing in some languages)
-New notification shown when an application is downloaded or updated
-Added teamfortress.com, tf2.com, etc. to list of approved chat urls
-Fixed case where retail install would be unnecessarily slow
-Fixed third-party installers not running if an installer before it failed
-Several Steamworks updates

• Added the ability to gift purchases to friends
• Added an in-game third-party CD key display for games without automatic Steam key integration