diff --git a/HISTORY.rst b/HISTORY.rst
index 681efde6..652cbffd 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -4,7 +4,7 @@ Release History
 PlatformIO 2.0
 --------------
 
-2.4.0 (2015-??-??)
+2.4.0 (2015-12-01)
 ~~~~~~~~~~~~~~~~~~
 
 * Added support for the new boards: Atmel ATSAMR21-XPRO, Atmel SAML21-XPRO-B,
diff --git a/platformio/__init__.py b/platformio/__init__.py
index 4c2ddbb9..0ef276d8 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-VERSION = (2, 4, "0b1")
+VERSION = (2, 4, 0)
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"