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Google Quietly Added Built-In TRIM Support In Android 4.3 – Should Fix Most Storage-Related Device Slowdowns

Many users of the original Nexus 7 remember how slow the device could get after a few months of heavy use. At least part of this problem has to do with the way NAND flash stores and deletes data. Android 4.3 comes with a little-hyped feature that could be huge for performance in the future – TRIM support via fstrim.

2013-07-29 20_33_28-b87937cdea689594a293979b30b13054e7455dee - platform_system_vold - Git at Google

There were ways to run the fstrim command on devices before, but it required root.

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[Developer Changelog] Here's A Really, Really Detailed Look At What's New In Android 4.3 (JSS15J)

So, you want to know about everything that's new in Android 4.3. Every single change that's occurred since 4.2.2. Well, if you don't mind scrolling through a barely-human-readable, mile-long developer changelog, now you can satisfy that urge.

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Al Sutton has posted a wonderfully-formatted AOSP commit changelog covering the changes from Android 4.2.2 (JDQ39) to Android 4.3_r2.1 (JSS15J). The JSS15J build is the most recent release of 4.3, and is the one currently shipping on the new Nexus 7.

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How To: Flash Your Galaxy Nexus Takju Or Yakju To Android 4.3 (JWR66V) And Root It Right Now

Note: This is an adaptation of my Nexus 4 update/root post, so it has some duplicate content, but all the instructions and images are specific to the Galaxy Nexus.

Android 4.3 was officially unveiled and released two days ago to the Android Open Source Project. In a surprisingly timely fashion, Google also released both the factory images and OTAs to the Nexus 4, 7, 10, and the Galaxy Nexus.

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How To: Update Your 2012 Nexus 7 To Android 4.3 (JWR66V) And Root It Right Now [Updated: Now For 3G Nexus 7 nakasig]

Note: This is an adaptation of my Nexus 4 update/root post, so it has some duplicate content, but all the instructions and images are specific to the Nexus 7.

Android 4.3 was officially unveiled and released yesterday to the Android Open Source Project. In a surprisingly timely fashion, Google also released both the factory images and OTAs to the Nexus 4, 7, 10, and the Galaxy Nexus.

Looking for more information on Android 4.3?
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Google Engineer Explains Why Multi-User Isn't Enabled For Phones, Offers Hope For Future Functionality

Ever since its inception in Android 4.2, end-users have wondered why the multi-user function has been restricted to tablets. While switching between profiles desktop-style certainly makes the most sense on tablets, there's no technical reason why it couldn't be enabled for phones as well. Yesterday an official Android engineer took to Reddit to explain the reasoning behind the limitation.

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"...it is not at all clear how it should work on a phone, specifically with respect to SMS and phone calls," writes Dan Morrill, Google Engineer and a regular on the popular /r/Android subreddit.

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Did You Root Android 4.3 With Chainfire's SuperSU? Update To v1.43 To Fix The 100% CPU Bug

If you've already updated to Android 4.3, whether via an OTA or by flashing it manually, and rooted it, you're more than likely using Chainfire's SuperSU, which carefully works around the new restrictions Google put in place. Cody has a good write-up about why they did it and what's going on, so go read that if you're interested in the details.

Chainfire created the Android 4.3-compatible root method and the updated SuperSU back when the first leaks showed up for the Galaxy S4 but hasn't updated it for a few weeks.

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Another Android 4.3 Change: Photo Spheres Look A Lot Better Now

Google Maps product manager Evan Rapoport revealed another Android 4.3 change on Google+ this morning - better photo spheres. Photo spheres were introduced in Android 4.2, and I truly believe they're one of the biggest things to happen to personal photography in years. They're limited to Nexus devices for the time being - and viewing outside of Maps / Google+ is still hard - but it's encouraging to see that Google is still going strong developing the feature.

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[Updated] Root On Android 4.3 Is Still A Bit Broken, But Chainfire's SuperSU Works, And Here's Why

It's no surprise that Google's latest update to our favorite operating system is in instant demand amongst power users and enthusiasts. Without fail, the people eagerly installing 4.3 are frequently the same ones who consider root privileges a necessity for a good Android experience. Unfortunately, it seems a wrench has been thrown into the works when it comes to exposing ultimate access, and people are experiencing more than a few hiccups because of it.

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How To: Flash Your Nexus 4 To Android 4.3 (JWR66V) And Root It Right Now

Android 4.3 was officially unveiled and released today to the Android Open Source Project. In a surprisingly timely fashion, Google also released both the factory images and OTAs to the Nexus 4, 7, 10, and the Galaxy Nexus.

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Download: Wallpapers From The New Nexus 7 [Updated]

Here are the wallpapers from the new Nexus 7 that is now available for pre-order and was shown off in full detail yesterday. From what I can tell, there is only one really new wallpaper compared to what came with the previous Nexuses, and it's the one that the new Nexus 7 comes with selected by default. I ran it through TinEye and Google's Reverse Image Search, and it's the only one that returned no existing hits.

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