Joomla 1.6 and later version have a built in updater, and RaidPlanner is compatible with it. Just go to Extension Manager, select Updates tab, press Find Updates. If you see a RaidPlanner update in the select, just click on the checkbox and press the Update button in the upper right corner.
If auto update doesn’t work just reinstall the latest version from GitHub without uninstalling the component.
See Installation
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