With iOS 9, developers can cutoff younger devices in a way that was not previously possible. Although iOS 9 runs on every device that runs iOS 8, app developers are free to specify more restrictive compatibility requirements.

In fact, with iOS 9, developers can choose to make their apps exclude any non-64 bit architecture. This means all iPod touch models, all iPhones before the iPhone 5s and all iPads before the iPad Air will not be able to install apps where developers have required 64-bit CPUs.

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In addition to releasing the second beta versions of iOS 8.4 with the all-new Music app, Apple today issued a new pre-release build of OS X Yosemite 10.10.4 for testers. The latest build comes in at 14E11f. The update is available for both developers and public beta testers. expand full story

During the WWDC 2014 keynote, Apple wrapped up its overview of iOS 8 and has officially announced device compatibility. This release is available for developers today and schedules for a public launch in fall.

iOS 8 will be compatible with iPhone 4s, iPhone 5, iPhone 5c, iPhone 5s, iPod touch 5th generation, iPad 2, iPad with Retina display, iPad Air, iPad mini, and iPad mini with Retina display. So it looks like the iPhone 4 is officially dead to Apple.

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With the introduction of iOS 6 this fall, many iOS users will be left out on some of the new operating system’s flagship features. We already covered Apple’s official list of compatibility for iOS 6 features, and by far one of the most disappointing for iPhone 4 users was the news that they would not have access to the Flyover and turn-by-turn navigation features in Apple’s new in-house Maps app. Today, we have news from Russian website iGuides (via SlashGear) that iOS developer Anton Titkov found a way to get Apple’s new 3D maps up and running on the iPhone 4:

After yesterday’s release of jailbreak iOS 6 developer, well known to all users iGuides Anton Titkov (iTony) decided to dig a little bit in the new firmware, and became the first man in the world, who managed to get working 3D card on the iPhone 4. New tweak from Anton Titkova called 3DEnabler , and at the moment we can confidently say that it adds support for 3D cards on the “old” devices, but it is possible that the “unavailable” Turn-by-turn navigation will be defeated by our talented developer.

iGuides offers instructions for the hack on its website, while another video of 3DEnabler running on iPhone 4 is below: expand full story

When upgrading from Snow Leopard to Lion, there is a chance of compatibility issues between app and the new OS. A new site called RoaringApps comes to the rescue by displaying what apps are compatible with the new OS. RoaringApps provides a long table of apps showing what apps are supported and if it is available in the App Store.

Other parts of the site include a forum and IRC chat to talk apps. This makes a great way to assure that all of your Mac applications are going to work, before you upgrade.

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