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This is going to change the OS X typical population in the future... most users will be on a current version, and this will simplify life to developers (now you just need to develop for the last OS X version).

However, one of my machines is a late-2010 Macbook Air, running 10.6.8, and I think I won't update it to Mavericks... I love how snappy this machine is, and how fast SL boots on it.

But I plan to update the iMac to Mavericks, though.
 
I have 32GB RAM installed on my 27' i7 iMac.
In ML used at the most 9GB RAM.
Now using Mavericks..... Activity Monitor says memory used 19.86GB with the file cache being 13.91GB. Interesting......and yes Safari is snappier:eek:

I noticed more RAM being used as well....hmmm....
 
Can't remember there was a new OS that was so 'non visible', maybe because of that it was a free upgrade.

The only thing I noticed is that they decided to kill the functionality of Safari Top Sites and instead gave us a completely useless sidebar, that you can't seem to hide...

Je kan het gewoon verbergen. Druk op het open boek icoontje en je ziet Top Sites volledig. Wel jammer dat Top Sites nu vet lelijk zijn.
 
However, one of my machines is a late-2010 Macbook Air, running 10.6.8, and I think I won't update it to Mavericks... I love how snappy this machine is, and how fast SL boots on it.

Good news!...It will run Mavericks, and run it beautifully at that.
Much much better than any flavor of Lion.
Like having a new computer for me.

Unless you are dead set on keeping SL, I wouldn't hesitate to upgrade.
 
Well, the current version of Mavericks is clearly not finished. No rational reason to install it now. None whatsoever.

I would be pleased to hear your examples of why you think that...
I did NOT use the betas so I haven't watched it slowly progress from buggy to solid. I updated last night. So far the only "issue" has been incompatibility with one single app...
A freeware app called Flip4Mac that I installed a few years ago b/c I wanted to output a windows media file. I only used it once & I was warned of the incompatibility BEFORE the install, so I just uninstalled it.
Everything seems SUPER smooth & peachy... if I have any bugs, I'll post.
 
I noticed more RAM being used as well....hmmm....

An OS that doesn't use all available RAM effectively when it can is just wasting available resources :)

A large file cache is by design- it can make a lot of things faster, and it is gone the instant any app needs the RAM for any other reason...
 
Installed here (Early 2009 Mac Pro). Had some problems with my Logitech webcam not being recognised when doing the upgrade from ML -- so I've had to do a clean install, which seems to have sorted it.

Apart from that, running pretty well (so far). For the first time I'm also running on pure SSDs so things are quick and there are no hard drive grinding noises anymore.
 
This adoption rate is pretty much what I expected as soon as the announcement of the free upgrade came.

And yes, even on my little websites, I too observed 50% users on ML, 25% users on Lion and 25% on SL and before. I can second that.

I believe most of the 75% of ML and Lion will be on Mavericks within the coming days. SL on the other hand is here to stay and will continue to have more than 10% for at least two more years. Just saying one word: Rosetta.

I on the other hand will be able to drop support for Lion as well as ML very quickly. That's a good thing for me as a software engineer.
 
I am not being able to download it... Maybe the servers are being hammered... It was dowloading fine and my wife decided to close the lid when it was through 4.5 GB... And I just can't get connected to the app store since... :(
 
Complaints about Mavericks: none. It's fkin awesome!

Here's a couple: new power key behavior to get used to (ctrl-power for prompt now, with no apparent way to reconfigure), and heaven knows why my ~/Library/Messages/Archive directory seems to have vanished...

Edit: oh, and now my Recovery HD is showing up on my desktop...
 
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Well, the current version of Mavericks is clearly not finished. No rational reason to install it now. None whatsoever.

Other than my 6 year old iMac suddenly turning off late last night, not too much to complain about. Terminally fixing the inverted scrolling and coping with dot-sized tags and a Safari single query/URL bar that mimics Android were a pain upping from Snow Leopard but from Mountain Lion those would have been old problems.

I have noticed zero bugs or incompatibilities and the free iWork update made it all the more worth it. 10.9 is perhaps an even better free update than 10.1 and 8.6 were.
 
I tried to get it to download up until 3AM this morning and gave up. Maybe too many people are trying but I'mm wait a week and try again.
 
This is going to change the OS X typical population in the future... most users will be on a current version, and this will simplify life to developers (now you just need to develop for the last OS X version).

However, one of my machines is a late-2010 Macbook Air, running 10.6.8, and I think I won't update it to Mavericks... I love how snappy this machine is, and how fast SL boots on it.

But I plan to update the iMac to Mavericks, though.

Yeah, it's interesting to see how much "free" is pushing Mavericks adoption.

I used to be a day-one upgrader, but more and more I find it's just a pain with various (free & paid) app upgrades required. Like you, my MBP is on 10.6 and I've no plans on upgrading. I'll get Mavericks the next time I buy a Mac.
 
I have a Mac Pro 1,1 and there is absolutely no reason it can't run Mountain Lion, or for that matter, Mavericks. Apple refuses to update the Boot ROM on these computers so we're forced to buy new Macs if we want the latest and greatest operating system. My computer has 2 x 2.66 GHz Dual-Core Intel Xeon chips, the ATI Radeon HD 5770 1024 MB card, 28 GB RAM, a 512 SSD drive (which dramatically speeded it up from a 2-minute boot-up sequence to less than 30 secs), and more. It drives me nuts that a perfectly good 64-bit computer has been given a "do not upgrade" designation.
 
Apple accomplished in 24 hours with Mavericks what Windows 8 accomplished in an entire year. Crazy.

Let's not get ahead of ourselves.

7% of OS X users is a much smaller amount than 7% of Windows users. This is an amazing thing, true, but let's not blow it out of proportion.
 
This 3mo old, maxed out, 27" iMac that sits on my desk has never successfully power cycled once. Trying to soft restart results in hanging. It just crashes out every few days in an assortment of ways and I have to hard reset it.

So last night I wiped it and installed Mavericks fresh from USB.

I rebooted it about five times in a row just enjoying seeing it work properly. And then I used it... Holy cow is it ever faster than the lions.

If only ios7 was this nice of an upgrade.
 
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