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

[maven-release-plugin] copy for tag v2.7.1

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

[maven-release-plugin] copy for tag v2.6.4

[maven-release-plugin] copy for tag v2.6.3

[maven-release-plugin] copy for tag v2.6.2

[maven-release-plugin] copy for tag v2.6.1

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

[maven-release-plugin] copy for tag v2.5.0

[maven-release-plugin] copy for tag v2.4.0