You can find all issues related to this release on the respective Milestone.
Notable fixes in this release are that the GenericTTS module is now supported and that the legacy integration of modules with no official support for Icinga DB Web is working again, even if the monitoring module is disabled. Action and Note URLs, which disappeared with v1.0.1, are also visible again.
Some enhancements also found their way in this release. They include improved compatibility with Icinga DB's asynchronous behavior and its migration tool included in the v1.1 release.