If you're using a Mac with OS X 10.5 (Leopard) or older, you must first purchase a copy of OS X 10.6 (Snow Leopard) and install it on your Mac before you'll be able to update Safari.On the heels of the recent release of the Polycom Real Presence Trio 8800 comes the first firmware upgrades.Sierra will probably run significantly slower than Snow Leopard and I'd recommend at least 4GB and an SSD or at least 8GB of RAM.Here's how Apple says you can upgrade via their mac OS upgrade page. If you’re running Snow Leopard (10.6.8) and your Mac supports mac OS Sierra, you will need to upgrade to El Capitan from the App Store first. If you’re running Leopard and would like to upgrade to mac OS Sierra, first you’ll need to upgrade to OS X Snow Leopard.You can purchase OS X Snow Leopard from the Apple Online Store.
* New Skype for Business themed user interface * New USB Optimized mode for Skype foe Business tethering scenarios * Multiple video stream support and new screen layouts for video and content viewing * Various improvements in calendaring, contact search, and conferencing management Also be aware that currently the firmware releases for Trio are not lock-step with the existing VVX releases, nor with the CX5500 releases.I want to update from Mac OS X 10.6.8 to the newest version which is mac OS Sierra.My Mac should be able to run this version of mac OS.As well as changing the case type, the redesign also added a Fire Wire 800 port, dropped the 17" display model and moved the top of the range 24" model to the 2.8GHz Intel Core Extreme CPU.These first Aluminium i Macs can take up to 6GB of RAM. At the end of April 2008 Apple updated the i Mac line again, keeping the Aluminium case but offering updated graphics options, increasing the CPU speed and bumping the front side bus to 1066MHz and the memory bus to 800MHz, meaning that this i Mac uses faster RAM than the previous models. In March 2009 another revision moved the memory speed up to DDR3 1066MHz (keeping the front side bus at 1066MHz) with a maximum of 8GB in 2 x 4GB modules.CUDA Application Support: In order to run Mac OS X Applications that leverage the CUDA architecture of certain NVIDIA graphics cards, users will need to download and install the 7.0.64 driver for Mac located here.