We're pleased to announce that the Microsoft Information Protection SDK version 1.13 is now generally available via NuGet and Download Center.
In this release of the Microsoft Information Protection SDK, we've focused on adding preview support for offline publishing and have made changes in how MIP SDK consumes Office documents and emails protected with AES in cipher block chaining (CBC) mode.
Offline Publishing
Until now, applying protection to a file required an online call to fetch a publishing license from the rights management service. In MIP SDK 1.13, we've added public preview support to enable offline publishing. Now, after making an initial connection to the service, the client no longer needs to have internet connectivity or make a service call to protect content. This feature is in public preview for the 1.13 release.
To learn more, check out the MIP SDK documentation: https://aka.ms/mipsdkofflinepublishing
CBC Mode Updates
We've made updates to how MIP SDK consumes and publishes Office files, including Word, Excel, and PowerPoint documents as well as emails protected by Microsoft Purview Information Protection. In the second half of 2023, M365 Apps on Current Channel and Monthly Enterprise Channel, Exchange Online, and SharePoint Online will default to publishing Office documents and emails using 256-bit AES encryption in CBC mode. Applications using the Microsoft Information Protection File SDK must be updated to version 1.13 to support consumption of these files.
For a full list of changes to the SDK, please review our change log.
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