diff --git a/HISTORY.rst b/HISTORY.rst
index ecd4dd04..4771a3c0 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -6,7 +6,7 @@ Release Notes
 PlatformIO Core 4
 -----------------
 
-4.3.0 (2020-??-??)
+4.3.0 (2020-03-19)
 ~~~~~~~~~~~~~~~~~~
 
 * Initial support for an official `PlatformIO for CLion IDE <https://docs.platformio.org/page/integration/ide/clion.html>`__ plugin:
diff --git a/docs b/docs
index 0af3f530..51b7dd49 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit 0af3f53030196d1e9dec83e380814048ab9948ce
+Subproject commit 51b7dd49b703fd6156375a93d4bbb6e0890ecb09
diff --git a/platformio/__init__.py b/platformio/__init__.py
index 7df83f59..c5dd8dcc 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 = (4, 3, "0rc1")
+VERSION = (4, 3, 0)
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"