We are changing Logos 5.2b from the "maintenance" support level to "unsupported" on September 21, 2015. (For a full description of these support levels, please see "About Free Support".)
Logos 5.2b will not be disabled. Your existing install will continue to run with the resources you already have. However, new resources purchased from logos.com may not be readable in Logos 5.2b.
If you are running Windows 7 or later, or Mac OS X 10.9 "Mavericks" or later, you can update from Logos 5.2b to Logos 6 for free. (For a discussion of updating vs crossgrading vs upgrading, please see "Ways to Move to Logos 6".) We strongly recommend that all eligible customers move to Logos 6.
If you are running Windows Vista, then 5.2b is the latest version of Logos that can run on your operating system. It will continue to work with the resources you already have, but will no longer receive updates.
If you are running OS X 10.8 "Mountain Lion" (or earlier), you may be able to update to OS X 10.10 "Yosemite" for free. (And once you do that, you can install Logos 6.) See Apple's "How to Upgrade" article to determine whether Yosemite is compatible with your computer.
Very few Logos users remain on Vista/10.8, and releasing updates to 5.2b for new resources (to extend Vista/10.8 support) takes development and testing resources. With the upcoming releases of Windows 10 and El Capitan, both Vista and 10.8 will be three major OS versions out-of-date, and we will be retiring our support for them.