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The first beta of the upcoming iOS 10 was released three weeks ago and it contained an unencrypted kernel cache, a big improvement to software security policy, which streamlined system performance. In the second beta, Apple has left more OS components unencrypted, but it also brought new features.

iPhone software expert “MuscleNerd” has discovered that iOS beta 2 leaves unencrypted 32-bit bootloaders, all kernel caches and all RAM Disks (only for Apple TV are encrypted). It’s interesting that Apple is opening up many components to developer scrutiny, instead of keeping them under lock and key, and the unobscured iOS 10 kernel cache is one of the examples.

Apple said that by the kernel cache unencrypted, this will only optimize system performance and since it doesn’t include any important information, end users will not be affected. And researchers agree that this move will be to Apple’s advantage, because it will be able to fix as many bugs as possible, before the public release of iOS 10, which is set for this fall, most likely for September.

Here are the rest of changes in iOS 10 beta 2:

iOS 10 will have a new Messages app store, which is now live and it will be separate from the iOS App Store. From here, users will be able to download emoji icons they will use in Messages and they can access custom emoji apps such as Classic Macs, Hearts, Hands, and Smilies.

Also, in Control Center will appear new 3D touch shortcut icons along with the textual labels and in the Health app, users will have the possibility to register for organ donation. “On average, one person dies every hour in the United States waiting for an organ transplant because the demand for lifesaving transplants far exceeds the available supply of organs — and one donor can save as many as eight lives,” said David Fleming, President & CEO of Donate Life America, who added that “By working with Apple to bring the National Donate Life Registry to the Health app on iPhone, we’re making it easier for people to find out about organ, eye and tissue donation and quickly register. This is a huge step forward that will ultimately help save lives.”

Lastly, Mail received a new updated filters icon, but this is a minor change.