# 2016 v3.5

## Content



### Breaking Change

*   Report, PDF, and DataEngine services are completely re-designed for better performance and improved standards. For more information, see [ComponentOne Studio Web API documentation](/componentone/docs/webapi/online-webapi/overview).
*   In future, any FlexViewer build released on or after 2016v3.5 (4.0.20163.101), should use Web Api build (4.0.20163.79) and later.

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Core

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### Enhancements

*   Updated WebAPI sample to support Visual Studio 2017.

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Report Service

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### Enhancements

*   Added SSRS support in Report WebAPI.
*   Added pageSettings in the parameters of export action of report controller.

### Bug Fixes

*   Fixed an issue where an internal error displays after the user set the wrong path of SSRS to the service of WebApi.
*   Fixed an issue where Report does not load and error is observed when the user click the print layout button.

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Data Engine

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### Enhancements

*   Allow the user to set the customized max count for the aggregated data. For information about max count, see [Data Source Manager](/componentone/docs/webapi/online-webapi/Services/DataEngine/DataSourceManager) topic.
*   Added total items count for getting detail cell data and raw data.
*   Supports progress when getting the aggregated data.
*   Reafactoring in DataEngine Web API URL.

### Bug Fixes

*   Fixed an issue where the return "status" value of DataEngine URL is always "Executing" after setting the wrong "ViewDefinition".

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