On Monday, Apple has seeded OS X Yosemite Developer Preview 8 for developers to download and begin testing ahead of the official release some time this Fall (October?). Along with that, Apple has also released OS X Yosemite Public Beta 3 for those non-developers out there that had signed up for Apple's public beta program.

Those running either of the two operating systems will find this update under the Updates tab in the Mac App Store application. Those on the developer channel will be handed off to OS X Yosemite Developer Preview 8, while those on the public beta channel will be handed off to OS X Yosemite Public Beta 3.

Each of the updates contain a number of various bug fixes and performance and stability improvements to help the pre-release software run better. By fine-tuning the operating system more and more with each release, Apple will accomplish a stable release by the time it's scheduled to be public.

Developers can take advantage of this time to test their upcoming application updates before releasing them to the public when OS X Yosemite goes live in the Mac App Store as a free upgrade for users. The beta testers, on the other hand, are helping Apple to report bugs in the operating system that will be fixed before it goes live. This helps ensure a seamless transition for all users.

Sources: 9to5Mac