[maven-release-plugin] copy for tag v2.8.6

[maven-release-plugin] copy for tag v2.8.5

[maven-release-plugin] copy for tag v2.8.4

[maven-release-plugin] copy for tag v2.8.3

[maven-release-plugin] copy for tag v2.8.2

[maven-release-plugin] copy for tag v2.8.1

[maven-release-plugin] copy for tag v2.8.0

[maven-release-plugin] copy for tag v2.7.0

[maven-release-plugin] copy for tag v2.7.0-RC1

[maven-release-plugin] copy for tag v2.6.0