docs: release notes for 1.16.0

[vigneshshanmugam]

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• Start Time: 2021-10-19T20:30:12.018+0000

• Duration: 28 min 42 sec

• Commit: 3544f47

Test stats 🧪

Test	Results
Failed	0
Passed	139
Skipped	0
Total	139

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