diff --git a/HISTORY.md b/HISTORY.md
index 64bebaf..4e548c1 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -3,7 +3,7 @@ A Makefile for Arduino Sketches
 
 The following is the rough list of changes that went into different versions. I tried to give credit whenever possible. If I have missed anyone, kindly add it to the list.
 
-### 1.0.0 (in development)
+### 1.0.0 (2013-09-22)
 - Add $OBJDIR to the list of configuration that gets printed. Fix issue #77
 - Add support for specifying optimization level. Fix issue #81
 - Add support for reseting "Micro" Arduino. Fix issue #80 (https://github.com/sej7278)
diff --git a/README.md b/README.md
index 5bf0a46..0c5e2d3 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ It is possible to use `[colorgcc](https://github.com/colorgcc/colorgcc)` with th
 
 ## Versioning
 
-The current version of the makefile is `0.12.0`. You can find the full history in the [HISTORY.md](HISTORY.md) file
+The current version of the makefile is `1.0.0`. You can find the full history in the [HISTORY.md](HISTORY.md) file
 
 This project adheres to Semantic [Versioning 2.0](http://semver.org/).
 
diff --git a/arduino-mk/Arduino.mk b/arduino-mk/Arduino.mk
index ed95207..c90d773 100644
--- a/arduino-mk/Arduino.mk
+++ b/arduino-mk/Arduino.mk
@@ -19,7 +19,7 @@
 #
 # Original Arduino adaptation by mellis, eighthave, oli.keller
 #
-# Current version: 0.12.0
+# Current version: 1.0.0
 #
 # Refer to HISTORY.md file for complete history of changes
 #