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First, start a vote on the dev@ mailing list. Once the vote has passed, forward the results of the vote to the general@incubator mailing list. Once this second vote has also passed, you can promote the RC to a release.

Upload the artifacts to https://dist.apache.org/repos/dist/release/incubator/ via svn (note the difference: the release goes under the /release branch, the RC artifacts under the /dev branch).

svn mkdir https://dist.apache.org/repos/dist/release/incubator/samoa/X.Y.Z-incubating
svn cp X.Y.Z-incubating-rcW/* https://dist.apache.org/repos/dist/release/incubator/samoa/X.Y.Z-incubating/

Optionally deploy commodity binary packages via https://repository.apache.org and send an [ANNOUNCE] email to dev@ and general@incubator mailing lists.

References

http://www.apache.org/dev/publishing-maven-artifacts.html

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