Mac OS 8.5 Technote: Part LXXXIII Copyright 1998 by Apple Computer, Inc. All Rights Reserved. [Previous section] [Mac OS 8.5 Contents Page] [Next section]

Apple Developer Utilities Mac OS 8.5 requires updated copies of the following Apple Developer Utilities:

MacsBug 6.5.4a6 MacsBug is Apple's low-level debugger, providing a user interface for the disassembly and perusal of machine-level instructions.

COMPATIBILITY NOTE Mac OS 8.5 will not load versions of MacsBug earlier than 6.5.4a5. If Mac OS 8.5 finds an unsupported version of MacsBug in the System Folder, it will attempt to rename the MacsBug file to "MacsBug Obsolete" (where " Obsolete" is a localized string).

COMPATIBILITY NOTE In Mac OS 8.5, the Font Manager has its own private heap zone. This heap has no free blocks. As a result, Macsbug 6.5.4 reports the heap is corrupt. This is a harmless condition, not a real corrupt heap; Macsbug is reporting the wrong thing.

Related Materials: MacsBug Reference and Debugging Guide Download MacsBug

Macintosh Programmer's Workshop (MPW) Some versions of MPW Shell and StdCLib can cause problems under Mac OS 8.5. Click here for more information.

[Previous section] [Mac OS 8.5 Contents Page] [Next section] To contact us, please use the Contact Us page.