What TeamCity versions are supported by the add-on?

The add-on supports TeamCity 9.0 and newer versions.

What roles and permissions should the user have that is used for integration between JIRA and TeamCity?

You need to grant roles of Project Viewer and Agent Manager to this user account. For the Agent Manager role you can set only the 'View agent details' permission in TeamCity.

How often is data index updated?

Data index is a set of TeamCity build data that the add-on uses for display in projects and issues. Once the initial data indexation is complete, the add-on updates the data index every two minutes.

What is initial data indexation?

Initial data indexation is a automatic procedure that is launched after setup of connection to TeamCity server. It creates the index of TeamCity build data for quick data accessibility when viewing the related projects or JIRA issues.

Can I configure the data indexation parameters?

Unfortunately, not for now. You can vote for this feature.

Can I remotely trigger builds in TeamCity from JIRA?

Unfortunately, not for now. You can vote for this feature.