Update release note for 2.14 release

[yuye-aws]

Description

Update release note for 2.14 release

Issues Resolved

Update release note for 2.14 release

Check List

• [ ] New functionality includes testing.
  • [ ] All tests pass
• [ ] New functionality has been documented.
  • [ ] New functionality has javadoc added
• [x] Commits are signed as per the DCO using --signoff

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[yuye-aws]

@jmazanec15 Need to also attach backport 2.x label.