I'm unclear whether or not I should be upgrading my JIRA FishEye plugin. For whatever reason, it's showing up in System Plugins as:
Plugin key: com.atlassian.jirafisheyeplugin
Developer: Atlassian Software Systems
Plugin version: 3.2.1
The plugin documentation says in order to upgrade to the latest compatible version (3.4.7) that I should remove the .jar file from <jira_home>/plugins/.bundled-plugins/ and <jira_home>/plugins/installed-plugins/ and replace it with the downloaded version in <jira_home>/plugins/installed-plugins/.
However when I did that, my JIRA project pages wouldn't display and I got quite a few errors. I replaced the old JAR file and things are working OK.
How should I go about upgrading?