Structure.Gantt 1.1.1 adds compatibility with Jira 7.10 (please see the link below for known issues). It also contains fixes for a few issues, mostly related to custom progress calculation.
Upgrading is recommended for all Structure.Gantt users.
See Structure.Gantt 1.1.1 Release Notes for more information. Please make sure you read the Release Notes if you have Gantt charts with customized progress configuration!