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I'm trying to update my Mac from 10.5.8 to 10.6.0 in order to install Photoshop CS6 but my Mac doesn't want to find the update when I click Check for updates.

What options do I have?

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Mac OS X 10.6 is a major release. I believe you'll have to purchase the upgrade. – iglvzx May 23 '12 at 5:26
So, following your arguments, you thought Microsoft were giving away Windows 7 for free just because you bought a PC that came with Vista? – slhck May 23 '12 at 7:31
photoshop cs6 still supports windows xp! xp was released on August 24, 2001. mac osx was released 26 October 2007. Its ridicules that i cant use photoshop on it an im forced to update :( – Xitcod13 May 23 '12 at 20:05
up vote 4 down vote accepted

On the Mac OS X: Upgrading your software help article, Apple states:

Mac OS X v10.1, 10.2, 10.3, 10.4, 10.5, 10.6 and OS X Lion themselves are not free updates, they are reference releases, also called upgrades.

So, you will have purchase Mac OS X 10.6 Snow Leopard $29 from Apple to update.

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Or even buy Lion! – Kamil Klimek May 23 '12 at 8:58

If you are a MobileMe subscriber you may be able to get 10.6 for free as Apple are giving away upgrade DVD's. You can read more here:

I managed to get hold of one for my Dad.

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