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Once everything is working (website docs, website changes, 24 hours after upload) create an announcement on the website and then send an e-mail to the mailing list.
Follow instructions from here: http://www.apache.org/legal/release-policy.html#release-announcements
Note: There must be a link in the announcement to the downloads page, not to the dyn/closer page. Downloads must be mirrored from the official Apache distribution site, not from github or other site. e.g. "A Link to the http://mxnet.incubator.apache.org/install/download.html"
Send an email to announce@apache.org, general@incubator.apache.org, and dev@mxnet.incubator.apache.org with the subject: [ANNOUNCE] Apache MXNet <release number> Release and a body along the lines of:
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