Updated models with AMD graphics options expected in early 2017.
Apple Still Working on 10.4.11
Apple has continued with frequent seeds of Mac OS X 10.4.11 to developers. The most recent seed was released to developers last week on October 9th, bringing the development seeds up to builds 8S2161/8S161 for Intel/PowerPC.
The latest updates provide additional bug fixes to Webkit for Dashboard, but there remain some issues with existing Widgets.
Apple has also been hard at work on the final version of Mac OS X Leopard which reached Gold Master candidate last week and should reach Gold Master this week.