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Lion will drop support for earliest Intel Macs

In the past two releases of Mac OS X, we've seen the baseline support for legacy machines hiked a notch higher each time; for Leopard, eliminating slower G4s from the working list, and for Snow Leopard dropping PowerPC support entirely in favor of the newer Intel models.

Now, with the developer preview of Mac OS X 10.7 Lion in the wild, the next frontier for obsolescence is set -- the new OS drops official support for Core Duo and Core Solo-based Intel Macs as well. We have heard from some testers that they've successfully installed and booted Lion on the older unsupported machines, but your mileage may vary. Update: Our correspondents were confused about the requirements, and in fact were using supported machines.

Why the shift? Apple's not saying yet, but the machines based on these 32-bit Intel CPUs may not have the horsepower or addressable memory space to support Lion, or Apple may be pushing towards a full 64-bit OS and kernel (which might cause some issues for hardware drivers and peripherals). In any event, if you've got a first-generation Intel Mac that's more than four and a half years old, you may be staying with 10.6 Snow Leopard (or Leopard or Tiger, for that matter, if you haven't updated).

Machines with the newer 64-bit Core 2 Duo and later chips are almost all good to go with the new cat in town, with one exception in this preview release; "late 2006" iMacs with Core 2 Duos are not yet supported.

Keep in mind that the exact system requirements and supported models may change between now and the official release of 10.7 sometime this summer.

[hat tip to ZDnet]



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Mac OS X

In the past two releases of Mac OS X, we've seen the baseline support for legacy machines hiked a notch higher each time; for Leopard,...
 

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Jesus H. Christ

You know, if you can't update to 10.7, you might as well destroy your MBP because none of the apps will work anymore, or be any good.

...come off the propaganda, I still use my G3, G4, G5's. It's not the end of the world. However, I also have an office full of Intel Mac-ery, so it's easy for me to say!

If it's really that big of a deal, buy a new Mac with the money you get from selling your old Macs.

May 11 2011 at 7:56 AM Report abuse rate up rate down Reply
SurfSpirit

Apple is getting too greedy, it's all about iPhone, most updates where iPhone, iLife '11 was not inovating at all, Mac OS X, Apple publicity called the most advanced OS in the World takes like 3 times too boot that Linux Ubuntu, and the same to shut it down, the Open Source Ubuntu seems to have lot better support that Apple gives to them own costumers, Mail app has no good plugins support, and it breaks what exists in every update, while it's truth that being stuck to Mac OS X Snow Leopard doesn't end your computer use, it's also truth that you will have new apps versions and OS versions only compatible with OS X Lion, so much of bug fixes and usefull features won't be compatible, a way to force you to buy a new highly over priced Apple Machine. Even in Mac OS X I more and more use open source software, the only reasone kept me for moving to the free and very fast Ubuntu was the Hard Disk Mac OS X Snow Leop,ard and Ubuntu read/write capabilities, but now on, it will probably be the time to change for a robust, fast, and really long supported OS, Ubuntu!

April 01 2011 at 6:23 AM Report abuse rate up rate down Reply
Pacoup

Well... Windows 7 runs on Pentium 4 faster than the latest iteration of Windows XP (SP3). Catch my drift? Mind you Linux can run on even less. Ha.

I have since long given up on that $%?&* of a company Apple is.

Running Windows 7 on a 2006 iMac Core 2 Duo. And it runs dam fine.

March 09 2011 at 10:40 AM Report abuse rate up rate down Reply
Mike

I have a Mac Pro 2006 Desktop. Here are specs. Will this be able to run Lions based upon what we know so far?

Model Name: Mac Pro
Model Identifier: MacPro1,1
Processor Name: Dual-Core Intel Xeon
Processor Speed: 3 GHz
Number Of Processors: 2
Total Number Of Cores: 4
L2 Cache (per processor): 4 MB
Memory: 4 GB
Bus Speed: 1.33 GHz
Boot ROM Version: MP11.005C.B08
SMC Version (system): 1.7f10

March 05 2011 at 3:15 PM Report abuse rate up rate down Reply
(01)

F you Apple, you forced me to upgrade to SL for the iPhone 4 and now won't even support my MBP for Lion? What possible reason could there be for this?

February 26 2011 at 3:16 PM Report abuse rate up rate down Reply
2 replies to (01)'s comment
JD

Snow Leopard is not required for iPhone 4. Regular Leopard will do fine.

February 26 2011 at 4:09 PM Report abuse rate up rate down Reply
Kendall Tawes

They made you have to buy an OS for $29. Were you running Tiger previously? In any case that is a rather old OS debuting in 2004. Would you be mad if you bought software that couldn't run on Windows XP too? In any case it would cost you a bit more than $29 to get Windows 7 on there. By the way I have a HP notebook that someone gave me that came with Vista that doesn't fully support Windows 7.

February 27 2011 at 11:13 AM Report abuse rate up rate down Reply
macbitz

I knew there was a reason I waited for the early 2008 Quad-Core Mac Pro ;-)

Irony is that the main reason I got it was so I could run four Windows XP VMs simultaneously (each with 2Gb RAM) under Fusion, and run my 'home' OS X desktop, all on one machine. Have to say, it's been rock solid for that.

February 26 2011 at 6:15 AM Report abuse rate up rate down Reply
tuaw

I run a 64-bit kernel full time on my iMac. I've had no problems so far.

February 25 2011 at 7:32 PM Report abuse rate up rate down Reply
Tyler

Bad apple! I bought this thing a year ago used and spent $300 maxing out the specs 2 months ago, and now you take that all away! You make good products, but I swear you hate consumers.

February 25 2011 at 6:27 PM Report abuse rate up rate down Reply
3 replies to Tyler's comment
shrouded

The pain caused by these decisions are a side-effect of why OSX runs better than Windows.

The backwards-compatability Microsoft maintains with Windows is amazing. It is a massive feat of engineering to build a 64-bit OS that will run many 15-20 year-old apps. Every major release of Windows includes new graphics APIs to provide fancy new features, but still tried to make the old ones work. The upside is that a ton of old apps work & old hardware stays supported. The downside is that it takes a complex, bloated mess with over a decade of legacy security holes to accomplish it.

OSX avoids those problems completely. You give up compatability in trade for running a better-engineered system. Both are valid choices, just don't expect to have the things you like about OSX without seeing hardware go unsupported faster than you'd like.

February 25 2011 at 6:00 PM Report abuse rate up rate down Reply
jennyp

I'm confused. My MBP is described by System Profiler as "MacBookPro5,5" with processor as 2.53 GHz Intel Core 2 Duo. Is it OK to run Lion?

February 25 2011 at 4:51 PM Report abuse rate up rate down Reply
1 reply to jennyp's comment
Michael Rose

It is. The key phrase there is "Core 2 Duo," as distinct from "Core Duo." Those similar names belong to two different processor architectures, with the Core 2 Duo being a 64-bit processor while the Core Duo is 32-bit. All Apple's Core 2 Duo machines (except for the earliest C2D iMacs) are currently able to run the Lion developer preview.

Don't feel bad for getting mixed up -- the same thing happened to our developer sources who *thought* they were running Lion on unsupported processors; they weren't.

February 25 2011 at 6:15 PM Report abuse rate up rate down Reply
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