Today Apple has released the second public beta build of OS X Yosemite, which will be available by running Software Update in the Apple menu for those who are part of Apple’s Yosemite public beta program.

While the update only states it is recommended for all users, this is the case for all of Apple’s pre-release software. The latest update will address a number of bugs with the prior beta build of Yosemite, and puts the release of Yosemite a few steps closer. If you are using the Yosemite public beta, then be sure to install this update.

While for mainstream versions of OS X, the recommendation is often to avoid an update for a few weeks to ensure it is properly vetted, for the beta versions you can be sure major problems are tackled in leaps and bounds, and while there might always be new bugs introduced, usually in these first stages of development the updates will tackle much more prominent problems.

Therefore, back up your OS X Yosemite installations using Time Machine (or back up any virtual machines that you have installed Yosemite on), and then update as soon as you can.

In addition to the Yosemite update, Apple has released iTunes 12 for testing, which introduces the software’s new interface and services that work with Yosemite. Be sure to install this update as well, since older versions of iTunes may be broken with the new version of the operating system.