FileMaker Inc. announced their new FileMaker Cloud version 188.8.131.52. The update is already available on Amazon's marketplace. This update includes the FileMaker 16 Server engine, so you can now use all the new features in FileMaker 16 like Data API, PDF generation on server and OAuth 2.0 client authentication.
See release notes for details: Release Notes
And documentation for new Admin API:
FileMaker Cloud 16 Admin API Guide Show All
MBS Plugin 7.4 for FileMaker cloud is available and runs just fine in the cloud. We have been using it the last months with a beta version in the cloud and it works very well. If you have wishes for new functions to be supported on Linux, please let us know.