I guess this was released alongside the Pro update:
This update delivers improved compatibility and numerous fixes.
Issues addressed include:
Support for 64-bit native mode
Compatibility with 64-bit Audio Unit plug-ins
File names with over 32 characters are now supported
Samples are now mapped correctly when using the "Contiguous Zones" option in the EXS editor
Updated System Requirements
32-bit mode requires Mac OS X 10.5.7 or later
64-bit mode requires Mac OS X 10.6.2 or later
The update is recommended for all users of Logic Express 9.
This update delivers improved compatibility and numerous fixes.
Issues addressed include:
Support for 64-bit native mode
Compatibility with 64-bit Audio Unit plug-ins
File names with over 32 characters are now supported
Samples are now mapped correctly when using the "Contiguous Zones" option in the EXS editor
Updated System Requirements
32-bit mode requires Mac OS X 10.5.7 or later
64-bit mode requires Mac OS X 10.6.2 or later
The update is recommended for all users of Logic Express 9.