A new rumor on Leopard’s release day floats on the internet, it seems Apple will release it on October 26th (16 days to go).
A ZFS preview version of Leopard’s has been seeded to developers via ADC this week.

ZFS is a fundamentally new approach to data management. We’ve blown away 20 years of obsolete assumptions, eliminated complexity at the source, and created a storage system that’s actually a pleasure to use.

In the release notes, Apple confirms that the original release of Mac OS X Leopard (10.5) will only offer Read-Only ZFS. As a result, no ZFS pools or filesystems can be modified or created under 10.5.0. This developer’s preview enables full read/write capability, including the creation/destruction of ZFS pools and filesystems. But they will probably work on a read/write version of it.
If these rumors are true, the last update for Tiger (10.4.11) should be released in the next few days…

Posted in Leopard, Rumors