JIRA Add-ons information

Question

Hello,

I am doing prepwork for our upgrade in which I have already figured out what all plugins I will be using in our new jira instance 7.3.3. However I am confused about few plugins that are there. I cannot tell if they get installed by Atlassian when we install Jira or if they are the extension of some other plugins. If you know about any of these, kindly let me know.

Redmine Importers Plugin for JIMvaliantys-base-pluginJIRA iCalendar PluginJIRA Working Hours Pluginjira-email-processor-pluginAtlassian ChaperonePocketknife Feature Flags Pluginjira-importers-pluginAtlassian Client ResourceAtlassian Timed Promise Plugin

Thanks

Peter DeWitt · Accepted Answer

Redmine Importers Plugin for JIM - JIRA
valiantys-base-plugin - Valiantys plugin installed with another of their plugins
JIRA iCalendar Plugin - JIRA
JIRA Working Hours Plugin - JIRA (Service Desk)
jira-email-processor-plugin - JIRA
Atlassian Chaperone - JIRA (Service Desk)
Pocketknife Feature Flags Plugin - JIRA (Service Desk)
jira-importers-plugin - JIRA

These last two I believe to be JIRA (Service Desk) also.
Atlassian Client Resource 
Atlassian Timed Promise Plugin