The RSA SecurID SDK 2.5 iOS release enhances security for customer and partner applications that are built using this SDK. This release contains the following improvements:

• BSAFE has been upgraded from version 4.3 to version 4.4. The SDK structure has changed from libraries to a dynamic framework using the BSAFE library MES v4.4.
• The SDK no longer supports devices running iOS 9 and iOS 10.

If you plan to include this new version of the SDK in your updated iOS apps, you are advised to reach out to impacted users to upgrade their devices and/or iOS versions as necessary to continue using their app.