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- Download Activity Streams for Bitbucket Server on the Atlassian Marketplace (Details Tab, click the download button).
- Click the admin drop-down on your Stash instance Bitbucket Server instance and choose Add-ons.
- Click Manage Add-ons...
- Click the Upload add-on link at the top right side of the page.
- Enter the location of the JAR file you downloaded.
- Click Upload.
- You're done!
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