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Mac OS 8.6 Update: Document and Software

This article has been archived and is no longer updated by Apple.

This article contains a software link to Mac OS 8.6 Update.

What's New in Mac OS 8.6 Update and CD-ROM

This document provides information about Mac OS 8.6 that supplements the information in your installation manual, on-line help, and About Mac OS 8.5 Read Me. For up-to-date news and compatibility information, please see Mac OS 8.6: Late-Breaking Tips.

Notes about Mac OS 8.6

Monitor Resolution changes after Mac OS 8.6 install

After performing a clean install of Mac OS 8.6, your monitor resolution may have changed from its previous settings. You can change your monitor resolution back by using the Monitors & Sound control panel.

Slow screen redrawing

If a desktop picture is redrawn slowly after closing a window, your computer might be running low on memory. Set the Appearance control panel to display a pattern, instead of a picture, to speed up the redrawing process.

Unusual or inconsistent appearance

Some applications may exhibit unusual or inconsistent cosmetic anomalies when used with Mac OS 8.6. These should not impact the performance of the application. Contact the manufacturer of the program to see if an updated version of the program is available.

Mac OS ROM File

If you are using an iMac or a 'blue and white' Power Macintosh G3 computer, do not attempt to move the file "Mac OS ROM" from a Mac OS 8.6 system software folder into a previous system software folder. This may result in a system folder which will not start your computer. Always use the Mac OS 8.6 installer when upgrading these computers to Mac OS 8.6.

NetBoot Administrators

The Mac OS 8.6 default installation places newer versions of certain files on the NetBoot HD disk image, but does not remove the older versions which are on the Applications HD disk image. After installing Mac OS 8.6, you need to move the newer versions from the NetBoot HD to the Applications HD, and delete the older versions.

Notes about compatibility

ColorSync 2.6

ColorSync 2.6 now includes support for Unicode tags inside of ColorSync/ICC Profiles. Some profiles may not show up under the ColorSync Control Panel after version 2.6 or later is installed. Apple is working on a utility to help update profiles to support this. 

Compuserve Accounts

When trying to dial in to a Compuserve account from the Remote Access control panel, after entering the password wait until the server responds before you press continue.

DVD-RAM Drives

Mac OS 8.6 does not support start-up volumes based on DVD-RAM media. If you install Mac OS 8.6 on a DVD-RAM volume you will not be able to boot your Macintosh from that volume.

Apple Multiple Scan 15

Newer versions of the Apple Multiple Scan 15 will not support 512x384 resolution. The Mac OS will notify you when your monitor does not support a particular resolution.

File Synchronization control panel

The File Synchronization control panel may crash if any of the folders or volumes in the window have a custom icon. You can remove a custom icon from a folder or volume by selecting it, Get Info on it (Command-I), select the icon in the upper left hand corner, and type Command-X.

Apple HD SC Setup program

After you install Mac OS 8.6, you cannot use the obsolete Apple HD SC Setup program to initialize your Apple hard drive. Use the Drive Setup program supplied with Mac OS 8.6 instead.

Apple language kits and Mac OS 8.6

Apple's language kits require an updater for full functionality with Mac OS 8.6. If you have language kits installed on an older system you are updating, or if you install a language kit after installing Mac OS 8.6, be sure to run the Language Kit Updater, located in the CD Extras folder of your Mac OS 8.5 CD. This is the same version of the Language Kit updater for Mac OS 8.5. If you are updating from Mac OS 8.5, and have already updated your Language Kit, you do not need to run the Language Kit Updater again after updating to Mac OS 8.6.

Applications that install QuickTime

Some applications replace the version of QuickTime installed by Mac OS 8.6 with an earlier version when they are installed. This will cause problems with other parts of the system that require features of the newer version of QuickTime. If this occurs, you will need to reinstall QuickTime from the Mac OS 8.6 CD by selecting "Add/Replace" in the installer, and then doing a custom install.

Desktop Printing extension and Mac OS 8.6

The Desktop Printing extension is incompatible with Mac OS 8.6. It may cause your computer to freeze when starting up. Restart with the shift key held down and remove the file from the Extensions folder, then restart.

Iomega 6.0.2 driver

Mac OS 8.6 includes support for the use of removable media (like the Iomega Jaz drive) for Virtual Memory.

If you wish to install Mac OS 8.6 onto a Zip or Jaz disk, you should change the backing volume used by Virtual Memory to a non-removable volume. To do this, disable extensions while restarting the first time by holding down the shift key. Open the Memory control panel and turn on Virtual Memory. The Memory control panel will let you set the VM backing volume to a volume that is compatible with VM.

On some Powerbook models, mounted Zip disks won't show up as mounted in the Media Bay Control Strip module but they are mounted and will appear on the desktop.

Some programs may require Additional Memory

Some programs may require additional memory when used with Mac OS 8.6. If a program will not open, select the program's icon, choose Get Info from the File menu and increase its minimum memory allocation by 300K. See the Memory topic in Mac OS Help for more information.

Notes about Printing

Reinstalling printer drivers

If you perform a clean installation of Mac OS 8.6, and an icon for your printer is not available in the Chooser, you may need to reinstall the software that came with your printer.

If you have a StyleWriter, StyleWriter II, or StyleWriter 1200, you should use the StyleWriter 1500 driver that comes with Mac OS 8.6 instead of installing your original printer software. If you have a Color StyleWriter 2200 or Color StyleWriter 2400, you should use the Color StyleWriter 2500 driver instead. After performing a clean install of Mac OS 8.6, you may need to reinstall fonts that came with your printer software.

If you use a Color StyleWriter 4000 Series printer and have performed a clean install of Mac OS 8.6, you must custom install your printer driver.

LaserWriter 8.6.5 and USB printers

LaserWriter 8.6.5 adds support for printing to USB-compatible PostScript printers, but additional hardware may be required to connect your printer to the USB port of your computer. Contact your printer manufacturer to determine the USB compatibility of your printer.

Miscellaneous notes

QuickTake 150 software installs old version of QuickTime PowerPlug extension

Mac OS 8.6 includes a new version of the QuickTime PowerPlug for computers with PowerPC microprocessors. The QuickTake 150 Installer replaces it with an older version (version 2.0). To install the QuickTake 150 software, first remove the newer version of the QuickTime PowerPlug extension from the Extensions folder (within the System Folder) then install the QuickTake 150 software. After installation is finished, drag the PowerPlug file back to the Extensions folder replacing the older one.

QuickTake Image Access

When you are copying pictures from a QuickTake 100 or QuickTake 150 camera to your computer, make sure all the pictures you want have finished copying before you erase the contents of the camera. Previously, you couldn't erase the camera until copying was completed. Mac OS 8.6 can perform other tasks while copying files so it's possible to accidentally erase the pictures before they have been copied from the camera. You cannot recover a picture once it is erased from the camera.

Using Acrobat PDF documents

Some of the manuals included with Mac OS 8.6 are in Adobe Acrobat format. These files have "pdf" at the end of their names. To view or print these documents you must install Adobe Acrobat Reader, located in the Adobe software folder on the Mac OS 8.6 CD.

Infrared Hardware on iMacs

If your iMac does not have infrared hardware, you will get an error when launching the infrared Control Panel.

Earlier versions of this software may be available at http://support.apple.com/downloads/.

For help with downloading, see Software downloads: Formats and common error messages.

All software available from this site is covered by a software license agreement included with this software.

Language/OS Required Release Date Version Read Me Software Multi-part
North American English
North American English Mac OS 8.5 or 8.51
1999-05-10 8.6
34600 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
International English
International English Mac OS 8.5 or 8.51
1999-05-11 8.6
34700 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
British English
British English Mac OS 8.5 or 8.51
1999-05-11 8.6
35400 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
français
French Mac OS 8.5 or 8.51
1999-05-10 8.6
35500 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Deutsch
German Mac OS 8.5 or 8.51
1999-05-10 8.6
35400 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Español
Spanish Mac OS 8.5 or 8.51
1999-05-10 8.6
35500 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Italiano
Italian Mac OS 8.5 or 8.51
1999-05-07 8.6
35500 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Nederlands
Dutch Mac OS 8.5 or 8.51
1999-05-10 8.6
47100 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16
Japanese
Japanese Mac OS 8.5 or 8.51
1999-06-21 8.6
47300 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16
Norsk
Norwegian Mac OS 8.5 or 8.51
1999-06-04 8.6
34900 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Svensk
Swedish Mac OS 8.5 or 8.51
1999-06-11 8.6
35100 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Suomi
Finnish Mac OS 8.5 or 8.51
1999-06-04 8.6
35500 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Dansk
Danish Mac OS 8.5 or 8.51
1999-06-04 8.6
35700 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Simplified Chinese
Simplified Chinese Mac OS 8.5 or 8.51
1999-05-13 8.6
English

45500 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
Traditional Chinese
Traditional Chinese Mac OS 8.5 or 8.51
1999-05-13 8.6
English

42700 K

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12

Keywords: ksysupdate kmos86 kbdload kaswu

File Size: 34,600 KB

System Requirements Supported Languages