Merge pull request #15207 from seamuslee001/5_16_4_5_17_release_notes
authorEileen McNaughton <emcnaughton@wikimedia.org>
Wed, 4 Sep 2019 01:59:53 +0000 (13:59 +1200)
committerGitHub <noreply@github.com>
Wed, 4 Sep 2019 01:59:53 +0000 (13:59 +1200)
[NFC] Bring up 5.16.4 release notes into 5.17


Trivial merge