The best way is update the main "Blue Ocean" plugin - it will then upgrade all the dependent plugins and libraries for you. Do not upgrade just one blue ocean plugin at a time, it works best if they are all kept up to date.
Moving forward, release notes will be published to github releases
1.17.0 (June 7, 2019)
1.16.0 (April 29, 2019)
- JENKINS-57209 - Switch Blueocean's calls to bitbucket API to use UUID instead of nickname since its going away (#1950) @halkeye