diff --git a/HISTORY.rst b/HISTORY.rst
index 7d3886ea..4bcb68f6 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -4,7 +4,7 @@ Release Notes
 PlatformIO 3.0
 --------------
 
-3.5.3 (2018-??-??)
+3.5.3 (2018-06-01)
 ~~~~~~~~~~~~~~~~~~
 
 * `PlatformIO Home <http://docs.platformio.org/page/home/index.html>`__ -
diff --git a/docs b/docs
index 9027fb91..3ad76be8 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit 9027fb91806573c063ef5cdc93d0541c38816e4f
+Subproject commit 3ad76be8f73ab1b3766bafa7ffca4284051aca4c
diff --git a/platformio/__init__.py b/platformio/__init__.py
index 5b90542b..6de67c99 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -14,7 +14,7 @@
 
 import sys
 
-VERSION = (3, 5, "3rc2")
+VERSION = (3, 5, 3)
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"