Apple has released the Mac OS X 10.4.6 Update that updates Mac OS X 10.4.5 to version 10.4.6 on both Intel-based Macs and PowerPC-based Macs.

The new security update fixes a number of problems and bugs with the operating system but most notably problems relating to the company's new MacBook Pro running on the new Intel Chipset.

Below is a list of fixes published by Apple:

- 802.1X login authentication configurations created in Internet Connect can now be used at the Mac OS X login window, too.

- Addresses an issue in which, when at the login window, the computer would not shut down automatically at a time specified in Energy Saver Schedule preferences; for more information, see this article.

- Prevents a potential issue in which Mac OS X might stop responding when trying to log-in as a FileVault-protected user if the protected Home image file has been damaged or moved; instead, a "You are unable to log in to the user account (name) at this time" alert message appears.

- Addresses an issue for home directories on AFP servers in which, after failing to burn a disc, an "error -61" alert message would appear when trying to delete the Burn Folder related to the unsuccessful burn.

- If you are bound to a directory system which enforces password expiration, you will now be periodically prompted to change your password at the log-in window - if your existing account and keychain passwords are the same, and you change your password at the login window, your keychain password will automatically be updated as well.

- You can now copy folders with files to an SMB-based server instead of only the folder being copied and this alert message appearing: "The operation cannot be completed because you do not have sufficient privileges for some of the items".

- Addresses an issue that could prevent MacBook Pro from printing to wireless printers via AppleTalk.

- Improves iDisk (WebDAV file system) performance.

- File and folder names that contain colon or forward slash ("/") characters in the main directory of an iDisk or WebDAV volume no longer cause issues.

- Resolves potential issues that could occur when using automatic proxy configuration (PAC) files.

Apple applications

- Resolves an issue in which Mail could unexpectedly quit when lowering the quote level within a reply message.

- Addresses an issue in which iChat, on an Intel-based Mac with a built-in iSight camera, could sometimes stop displaying video from the iSight camera until the computer was shut down and started up again.

- Dragging a movie clip into iMovie 6 on an Intel-based Mac will no longer potentially cause some of the iMovie window to turn black.

- Disk Utility's repair permissions feature will no longer report "We are using special permissions for..." messages.

- Updates Calculator so that the percentage button ("%") will no longer divide, under certain circumstances, when you expect it to calculate percentage—this could happen in Mac OS X 10.4.3 through 10.4.5.

- Resolves an issue that could cause Help Viewer to sometimes display a blank window.

- Addresses some issues that could cause DVD Player to unexpectedly quit when playing a movie disc on an Intel-based Mac.

- Terminal windows will no longer fail to open when using the /bin/zsh shell.

- EXIF data is now exported with TIFF images in Aperture.

- Aperture will no longer unexpectedly quit when exporting a file with keywords that contain twelve or more Cyrillic characters.

- Resolves potential issues with several iPhoto Automator actions, such as Import Photos into iPhoto.

- Includes iSync 2.2 which provides support for additional mobile phones. For more information, see iSync 2.2: Read before updating to Mac OS X 10.4.6 or later, or before first sync.

Third-party applications

- Resolves an issue in which Blizzard World of Warcraft character graphics could be distorted on an Intel-based Mac with a built-in graphics processor when vertex shaders are enabled.

- The Command-H key combination now hides QuarkXPress 6 as expected when it is the front application.

- Addresses an issue for Aspyr Media's True Crime: The Streets of LA game in which game movies are very dim on Intel-based Macs.

- Addresses an issue for Microsoft Word 2004 in which Word would display a "Word cannot complete the operation because too many files are open" alert message when autosaving a document to a network-based home directory.

- Improves character graphics appearance for Aspyr Media's The Sims House Party when running with Rosetta on an Intel-based Mac.

Other

- Makes Mac OS X aware of United States Daylight Savings Time (DST) changes enacted by the Energy Policy Act of 2005.

- Clicking an unmounted iDisk icon in the Save As dialog window of an application running with Rosetta no longer causes the application to stop with a spinning cursor.

- Spotlight is now better able to search the content of older Microsoft Word documents.

- Addresses an issue in which some third-party applications might stop responding or unexpectedly quit when running on an Intel-based Mac if you disconnect or connect a display while the computer is on.

- Addresses potential vnode reference count mismatches that could lead to a kernel panic.

- Addresses USB audio issues for PowerPC Macs; for example, latency is improved.

- Addresses several AppleScript issues, including: Preservation of property values in Script Menu, a potential Bonjour issue with "choose remote application", an invisible "choose application" dialog issue, and improved compatibility with Dashboard widgets and applications.

- Includes recent Apple security updates.