Please, advice how is better to make such integration.

• I have merged PR's in Bitbucket.
• I would like the information from these PR's (diff pull request number + title) to populate in the parametrised "Release Notes" field of Jenkins.
• This should happen when you click the "Build with parameters" button in Jenkins. 

Example of view merged pull request in Bitbucket (that should come to Jenkins):

#490: Implementation release notes feature 

#491: Fixing bug in release notes

#492: Improvements in release notes functionality

Example of Release Notes field in Jenkins (that we have in current configuration):

Attachment: release-notes.png