prepare 1.4 RC2
diff --git a/version.properties b/version.properties
index 9c4bbb8..1571523 100644
--- a/version.properties
+++ b/version.properties
@@ -12,4 +12,4 @@
 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
-artifact.version=1.4alpha
+artifact.version=1.4