diff --git a/.nupic_modules b/.nupic_modules
index 012cde4310..40d24fa925 100644
--- a/.nupic_modules
+++ b/.nupic_modules
@@ -1,3 +1,3 @@
 # Default nupic.core dependencies (override in optional .nupic_config)
 NUPIC_CORE_REMOTE = 'git://github.com/numenta/nupic.core.git'
-NUPIC_CORE_COMMITISH = 'cf0fc8d84fb331fc45cd1793770a3f0a6e7eda72'
\ No newline at end of file
+NUPIC_CORE_COMMITISH = '3c64788a4f803442ea2eb2e22be705c11004a119'
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97c8b27762..c36ff9b800 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## 0.5.1
+
+* Improves SDR classifier and tests
+* Modify the continuous online learning test
+* Add 3 tests on multiple item prediction
+* Fix test_pFormatArray
+* Implement SDR classifier in NuPIC
+* Make the 'arrayTypes' list more informative
+* Add getParameter/setParameter support for Bool and BoolArray
+* Improved anomaly params (from NAB)
+* Added minSparsity option
+* Get the encoder's outputWidth via parameter
+* Use nupic.core encoders from nupic via the Network API
+* Fix bugs and inconsistencies in the custom region demo
+* Adds BINDINGS_VERSION envvar to wheel filename (for iterative builds)
+
 ## 0.5.0
 
 * Removes references to FastTemporalMemory.
diff --git a/README.md b/README.md
index 37607bc355..e727f0e33b 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ The Numenta Platform for Intelligent Computing (**NuPIC**) is a machine intellig
 
 For more information, see [numenta.org](http://numenta.org) or the [NuPIC wiki](https://github.com/numenta/nupic/wiki).
 
-## Installing NuPIC 0.5.0
+## Installing NuPIC 0.5.1
 
 NuPIC binaries are available for:
 
@@ -35,7 +35,7 @@ First, you must install [Xcode command line tools](https://developer.apple.com/l
 
 > **NOTE**: The `nupic.bindings` binary distribution is not stored on [PyPi](https://pypi.python.org/pypi/nupic) along with the OS X distribution. NuPIC uses the [wheel](http://pythonwheels.com) binary format, and PyPi does not support hosting Linux wheel files. So we are forced to host our own.
 
-    pip install https://s3-us-west-2.amazonaws.com/artifacts.numenta.org/numenta/nupic.core/releases/nupic.bindings/nupic.bindings-0.4.0-cp27-none-linux_x86_64.whl
+    pip install https://s3-us-west-2.amazonaws.com/artifacts.numenta.org/numenta/nupic.core/releases/nupic.bindings/nupic.bindings-0.4.1-cp27-none-linux_x86_64.whl
     pip install nupic
 
 ### Install Windows
diff --git a/VERSION b/VERSION
index ebec9e5419..4b9fcbec10 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.5.1.dev0
+0.5.1
diff --git a/docs/Doxyfile b/docs/Doxyfile
index 3b48f3f512..1e5f278c51 100644
--- a/docs/Doxyfile
+++ b/docs/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = NuPIC
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 0.5.1.dev0
+PROJECT_NUMBER         = 0.5.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/external/common/requirements.txt b/external/common/requirements.txt
index 4e28068e8f..f3a9ac9e28 100644
--- a/external/common/requirements.txt
+++ b/external/common/requirements.txt
@@ -17,5 +17,5 @@ pyproj==1.9.3
 prettytable==0.7.2
 # When updating nupic.bindings, also update any shared dependencies to keep
 # versions in sync.
-nupic.bindings==0.4.1.dev0
+nupic.bindings==0.4.1
 numpy==1.9.2