Update CHANGELOG.md

4 jobs for version-0.5.3-release in 7 minutes and 2 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #392939
basic-2.7

00:01:02

passed #392940
basic-3.7

00:01:03

passed #392941
python-2.7

00:06:46

passed #392942
python-3.7

00:07:02

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