diff --git a/HISTORY.rst b/HISTORY.rst
index c56bd057..18e141c3 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -4,7 +4,7 @@ Release History
 PlatformIO 2.0
 --------------
 
-2.6.1 (2015-12-??)
+2.6.1 (2015-12-18)
 ~~~~~~~~~~~~~~~~~~
 
 * Added support for the new ESP8266-based boards (SparkFun ESP8266 Thing,
diff --git a/platformio/__init__.py b/platformio/__init__.py
index af4c57ac..dfffbd25 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, 6, "1.dev3")
+VERSION = (2, 6, 1)
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"