[maven-release-plugin] copy for tag xchange-4.2.3

[maven-release-plugin] copy for tag xchange-4.2.2

[maven-release-plugin] copy for tag xchange-4.2.1

[maven-release-plugin] copy for tag xchange-4.2.0

[maven-release-plugin] copy for tag xchange-4.1.0

[maven-release-plugin] copy for tag xchange-4.0.0

[maven-release-plugin] copy for tag xchange-3.1.0

[maven-release-plugin] copy for tag xchange-3.0.0

[maven-release-plugin] copy for tag xchange-2.1.0

[maven-release-plugin] copy for tag xchange-2.0.0