Release of 5.15.11

Release 5.15.10

Release 5.15.9

Release of 6.0.2

[maven-release-plugin] copy for tag core-5.15.8

Release of 6.0.1

[maven-release-plugin] copy for tag core-5.15.7

Release of 6.0

[maven-release-plugin] copy for tag 6.0-rc3

[maven-release-plugin] copy for tag 6.0-rc2