https://community.appian.com/discussions/f/plug-ins/37591/contentuploadoutputstream-missing-in-24-3I am looking to make some changes to the MS Graph Mail Poller plugin ( ) and came across an issue between 24.3 and 24.2. The plugin makes use of the ContentUploadOutputStream class, which exists in 24.2 ( https://docs.appian.com/suite/help/24.2//api/comen-USTelligent Community 12https://community.appian.com/thread/141051?ContentTypeID=1Wed, 25 Sep 2024 07:26:23 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:7916f11f-b550-4576-b74e-896ed20f10a0David Jimenez <p>It has happened to me&nbsp;that a class or a plugin was missing when installing a new version of Appian , without appearing in the release notes...</p> <p>When this happens it is usually because that functionality has been adapted in some other component, plugin or function</p><div style="clear:both;"></div>