diff --git a/.arduino-ci.yml b/.arduino-ci.yml
index e7cb463..7df2544 100644
--- a/.arduino-ci.yml
+++ b/.arduino-ci.yml
@@ -1,3 +1,18 @@
+platforms:
+  rpipico:
+    board: rp2040:rp2040:rpipico
+    package: rp2040:rp2040
+    gcc:
+      features:
+      defines:
+        - ARDUINO_ARCH_RP2040
+      warnings:
+      flags:
+
+packages:
+  rp2040:rp2040:
+    url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
+
 compile:
   # Choosing to run compilation tests on 2 different Arduino platforms
   platforms:
@@ -8,4 +23,10 @@ compile:
     - m4
     - esp32
     # - esp8266
-    # - mega2560
\ No newline at end of file
+    # - mega2560
+    - rpipico
+
+    # Declaring Dependent Arduino Libraries (to be installed via the Arduino Library Manager)
+  libraries:
+    - "printHelpers"
+
diff --git a/GST.cpp b/GST.cpp
index d2dacb5..fbf0116 100644
--- a/GST.cpp
+++ b/GST.cpp
@@ -1,6 +1,6 @@
 //
 //    FILE: GST.cpp
-// VERSION: 0.1.1
+// VERSION: 0.1.2
 // PURPOSE: Arduino library for Gold Standard Test metrics
 //     URL: https://github.com/RobTillaart/GST
 //          https://en.wikipedia.org/wiki/Sensitivity_and_specificity
diff --git a/GST.h b/GST.h
index 5103073..fd18e75 100644
--- a/GST.h
+++ b/GST.h
@@ -1,7 +1,7 @@
 #pragma once
 //
 //    FILE: GST.h
-// VERSION: 0.1.1
+// VERSION: 0.1.2
 // PURPOSE: Arduino library for Gold Standard Test metrics
 //     URL: https://github.com/RobTillaart/GST
 //          https://en.wikipedia.org/wiki/Sensitivity_and_specificity
@@ -9,7 +9,7 @@
 //
 // formula's based upon Wikipedia.
 
-#define GST_LIB_VERSION           (F("0.1.1"))
+#define GST_LIB_VERSION           (F("0.1.2"))
 
 
 #include "Arduino.h"
diff --git a/changelog.md b/changelog.md
index 8fcf132..55741df 100644
--- a/changelog.md
+++ b/changelog.md
@@ -2,8 +2,12 @@
 # GST Changelog
 
 
-## 0.1.1  2022-06-08
+## [0.1.2] - 2022-11-08
+- add RP2040 to build CI
+- update changelog.md
 
+
+## [0.1.1] - 2022-06-08
 - add **addTruePositive()** etc functions.
 - add defaults for **setTruePositive(value = 0)** etc functions
 - add long descriptive names for the short functions.
@@ -12,8 +16,7 @@
 - split off GST.cpp file, prevent - https://github.com/RobTillaart/CRC/issues/21
 
 
-## 0.1.0  2022-02-25
-
+## [0.1.0] - 2022-02-25
 - initial version
 -
 
diff --git a/library.json b/library.json
index f5bafe8..5855da4 100644
--- a/library.json
+++ b/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/GST.git"
   },
-  "version": "0.1.1",
+  "version": "0.1.2",
   "license": "MIT",
   "frameworks": "arduino",
   "platforms": "*",
diff --git a/library.properties b/library.properties
index e972582..d94cf7d 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=GST
-version=0.1.1
+version=0.1.2
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for Golden Standard Test, confusion matrix.