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been using my rMBP 15" all day (it's 2:30pm currently) and I'm still sitting at 9 hours of battery life!
 
Underlying technologies aside, and not specifically pertaining to DP3, Mavericks is turning out to be an extremely underwhelming release. The new features such as tags, and improvements to the finder were already available via 3rd party apps. Other new apps such as Maps and iBooks are great, but aren't exactly groundbreaking, or even essential features.

I notice the OS X innovation curve gradually tapering; the minor enhancements are great, the major features aren't exactly major or even necessary. This has consistently been the case since Snow Leopard.

It has been the case since Snow Leopard because Apple've since switched to annual releases, that alone mandates the feature set to be small every year. You can't get much from something with less than 12 month worth of development.

Compare Mavs to Lion 3 years ago and it is a huge change on any levels. The old 300+ new feature type of OS releases like Leopard will never happen again because Leopard itself two years to develop.

Mavs is a great upgrade. Responsive Scrolling, better Multi-Monitor support, improved RAM usage through Compressed RAM feature, better performance and battery life through the Timer timer coalescing and so on all required major changes to the OS itself.

Almost all of these will impact the next generation wave of apps coming to Mavericks.
 
I had 10.9 for weeks now, since Beta 1, as second OS. I did not encounter any problems with it so far, thus I have decided to replace ML with Mavericks and leave only one OS present.

I absolutely love it, it is fast, and I mean really fast, Safari is great, but not perfect, nothing major though. System is much more responsive than official Mountain Lion.
 
Another thing I hoped they'd fix in DP3 was the "name column" issue in finder...
I don't know if it's just me, but when you open a finder's window and files in the folder are quite long, finder keep the width of the name column quite short and if you want to see the whole name you have to manually resize.

Worst part is that if you go back to another folder with the back arrow in finder's window and then you go back to the folder you were before (the one with the files with long names) the name column is AGAIN returned to default width so you have again to resize to show the entire file name.

This is ANNOYING and was intellingently implemented into xtrafinder which had among its many smart functions, also the "automatically adjust width of Name column"

Why Apple is lately so careless in these little details that really make the difference? ... An screws good apps like Xtrafinder that filled its shortcomings?

I have the same problem. It annoys me as well but it should be fixed subsequently.
 
Can anyone report on performance enhancements for CMBPs?

I can. I don't have a powerful cMBP and I used to have lag sometimes, with Mavericks this lag is much more reduced. That's basically all the performance changes I've noticed. There is also the better energy management, which allow me to have an hour or even more (it depends on the workload) of battery life.
 
Is it possible to do a clean install of Mountain Lion via Internet recovery if I'm running Mavericks or do I have to go the USB installer route?

Also, if I want to make a USB installer, do I have to purchase ML from the App Store even if my Mac came preloaded with OS X 10.8.3?
 
DP3 -

Fixed/Changed

- Mouse wheel scrolling in Icon view when arranged by anything. (wasn't working before, only trackpad finger scrolling worked)
- Menu bar items now add to the left of existing items rather than right.
- (I think) New ‘Recent tags’ option in Finder preferences > Sidebar
- Quickly going back and forth in system prefs no longer locks the app (still gives error and won't display page)
-

Problems/bugs

- Still can't free ram using purge in terminal
- Still can make mini finder windows by dragging out a tab
- Quicklook isn't playing gifs anymore :(
- Quicklook seems to be having some problems in general
- Indexing seems to lump everything into the 'Other' category
-
I'm sure the Quicklook bugs will be fixed. It is annoying that .gif files don't play anymore. They seem to play for a short while but then completely stop.
 
I have the same problem. It annoys me as well but it should be fixed subsequently.

It should be fixed of course, but maybe they don't fix it, just like in lion. we had to wait to mountain lion to get it fixed... i hate this kind of things.
 
Still have WIFI bugs.

Tried streaming video via Airplay desktop mirroring (MotoGP subscription video from Safari) to my appleTV2 last night and my WIFI completely dropped (after about 10 minutes) until i disabled and re-enabled it. I only seem to see WIFI drops when streaming media (either audio or video) - gaming, etc is all fine.

Will follow up on the existing bug this evening (I reported WIFI bugs previously and got told it was a duplicate of an existing bug).

every device on my WIFI network is apple, so its not a third party device issue :D

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Can anyone report on performance enhancements for CMBPs?

Yup.

performance is better (than Mountain Lion) :D

Everything feels smoother, safari is faster, battery life seems to be very good, etc.
 
My shutdown times have drastically improved. I did a fresh install, not upgrading over Mountain Lion. It was slow to shut down in DP1, though not as bad as Mountain Lion has been for some of the Macs I oversee.
 
I'm very impressed with the performance of DP3 on my older MacBook Pro. I have a early 2011 and early 2008 and it runs better on my early 2008 than mountain lion ever did.

It almost feels like a new machine
 
Dock on Secondary Monitor

Hey guys, running a mid-2012 15" mbp, first off dp3 hellllaa smooth did some serious work taking out the bugs from the last two previews and am very happy.

On that note, i cannot seem to get my dock to appear on my secondary monitor (outputting through dvi if that helps).

Anyone else having this problem? was such a nice feature and am sad to see it no longer working!

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My shutdown times have drastically improved. I did a fresh install, not upgrading over Mountain Lion. It was slow to shut down in DP1, though not as bad as Mountain Lion has been for some of the Macs I oversee.

I noticed this as well, shutdown and startup times have improved greatly for a week or two i thought my hard drive was starting to go lol.
 
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