Adding release-notes for 1.3.15

[jordarlu]

Description

Adding release-notes for 1.3.15

Issues Resolved

part of [RELEASE] Release version 1.3.15

Check List

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

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For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.67%. Comparing base (47b37d7) to head (50cbe47).

Additional details and impacted files

@@             Coverage Diff              @@
##                1.3    #1345      +/-   ##
============================================
- Coverage     72.71%   72.67%   -0.05%     
  Complexity     1014     1014              
============================================
  Files           141      141              
  Lines          4750     4750              
  Branches        536      536              
============================================
- Hits           3454     3452       -2     
- Misses          965      967       +2     
  Partials        331      331              

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[jordarlu]

close this PR as #1346 is merged