*** September 25 – When we decided to end support for OverDrive for Mac, we failed to appropriately gauge the number of users that would be impacted and how. We are sorry for this mistake and the inconvenience it caused.

As a result, we are working as quickly as possible to restore the download option for MP3 audiobooks to users running macOS 10.6 (Snow Leopard) through 10.14 (Mojave). Once restored, the following message will appear for Mac users on your OverDrive website with a link to an updated Help article: MP3 audiobooks are only supported on macOS 10.6 (Snow Leopard) through 10.14 (Mojave). These updates will be made by October 2.

Users who upgrade to the newest MacOS Catalina will not be able to download and transfer MP3 audiobooks from OverDrive. Those users can listen to audiobooks in their browser, or depending on their device compatibility, install the OverDrive or Libby app (for public libraries) or the Sora app (for schools) directly on their device to listen to audiobooks.

Previously – An important notice for those using OverDrive for Mac to listen to audiobooks on their computer. Please be aware this ONLY affects those who use the OverDrive program on their Mac computers, not those who use tablets or phones:
“Due to upcoming macOS changes, and to simplify the user experience, OverDrive will soon end support for OverDrive for Mac. Effective September 4, 2019, OverDrive for Mac will no longer be available for download and Mac users will no longer see the option to download audiobook titles at your OverDrive website. Instead, Mac users can enjoy audiobooks using OverDrive Listen from your digital library website, or try Libby on their smart phone or tablet. Any users with audiobooks already downloaded to OverDrive for Mac will retain access to their downloads for the remainder of the lending period, provided they have not yet updated to macOS 10.15 (Catalina). Though we anticipate minimal user impact, OverDrive Help will be updated to assist with user support.”