diff --git a/app/src/processing/app/Base.java b/app/src/processing/app/Base.java
index 907597cbd..c0806157e 100644
--- a/app/src/processing/app/Base.java
+++ b/app/src/processing/app/Base.java
@@ -61,9 +61,9 @@ import static processing.app.I18n._;
  * files and images, etc) that comes from that.
  */
 public class Base {
-  public static final int REVISION = 155;
+  public static final int REVISION = 156;
   /** This might be replaced by main() if there's a lib/version.txt file. */
-  static String VERSION_NAME = "0155";
+  static String VERSION_NAME = "0156";
   /** Set true if this a proper release rather than a numbered revision. */
   static public boolean RELEASE = false;
 
diff --git a/build/shared/revisions.txt b/build/shared/revisions.txt
index dee422ee4..f15b2bea2 100644
--- a/build/shared/revisions.txt
+++ b/build/shared/revisions.txt
@@ -1,16 +1,21 @@
 
-ARDUINO 1.5.6 BETA
+ARDUINO 1.5.6 BETA 2014.02.19
 
 [ide]
 * Implemented 1.5 library specification Rev.2
   (https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification)
 * Replaced RXTX library with JSSC (Alexey Sokolov)
   http://code.google.com/p/java-simple-serial-connector/
+* If two libraries provides the same .h file prioritize the library with tha same folder name
 * Improved command-line parsing (Matthijs Kooijman)
 
 [libraries]
 * TFT: warning messages in PImage class and strings inside examples now stored in flash to save RAM. 
 * Ethernet: added operator == for EthernetClient class (Norbert Truchsess)
+* Robot_Control: removed embedded copies of Wire and SPI to allow their use in sketch.
+  Old sketches using Robot_Control now must include Wire.h and SPI.h.
+* Robot_Control: fixed issues about motor turning algorithm
+* Bridge: optimized FileIO.doBuffer() (bobh66)
 
 [core]
 * avr: Pile of HardwareSerial improvements (Matthijs Kooijman)
@@ -28,9 +33,11 @@ ARDUINO 1.5.6 BETA
 * sam: Fixed regression in analogRead() (fails to read multiple channels) (Mark Tillotson)
 * sam: Fixed loops in Reset.cpp (Matthijs Kooijman)
 * sam: Optimized delayMicroseconds() (Rob Tillaart) #1121
+* sam: added itoa() and related functions
 * Optimized Print::print(String&) method, now uses internal string buffer to perform block write
 * Improved portability of String class (maniacbug) #695
 * Make some operators in IPAddress const (Matthijs Kooijman)
+* Fix for compiling assembler files with newer gcc
 
 ARDUINO 1.5.5-r2 BETA 2014.01.10
 
diff --git a/hardware/arduino/avr/platform.txt b/hardware/arduino/avr/platform.txt
index 2adf29fa7..78f530aa4 100644
--- a/hardware/arduino/avr/platform.txt
+++ b/hardware/arduino/avr/platform.txt
@@ -6,7 +6,7 @@
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5---3rd-party-Hardware-specification
 
 name=Arduino AVR Boards
-version=1.5.5
+version=1.5.6
 
 # AVR compile variables
 # --------------------- 
diff --git a/hardware/arduino/sam/platform.txt b/hardware/arduino/sam/platform.txt
index f7d34ebf3..44c64d297 100644
--- a/hardware/arduino/sam/platform.txt
+++ b/hardware/arduino/sam/platform.txt
@@ -5,7 +5,7 @@
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5---3rd-party-Hardware-specification
 
 name=Arduino ARM (32-bits) Boards
-version=1.5.5
+version=1.5.6
 
 # SAM3 compile variables
 # ----------------------