# Hints and notes

### In this section

* [Data Integration: hints and notes](https://help.qlik.com/talend/en-US/release-notes/7.3/data-integration-hints-and-notes)
* [Big Data: hints and notes](https://help.qlik.com/talend/en-US/release-notes/7.3/big-data-hints-and-notes)
* [ESB: hints and notes](https://help.qlik.com/talend/en-US/release-notes/7.3/esb-hints-and-notes)