diff --git a/armadillo-4.320.0.tar.gz b/armadillo-4.320.0.tar.gz
deleted file mode 100644
index f4eff71..0000000
--- a/armadillo-4.320.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:2f670c164b3d26331ad1b8da39db3e06ef0e3ad8de33176903de0623ca2b11c9
-size 5321312
diff --git a/armadillo-4.400.1.tar.gz b/armadillo-4.400.1.tar.gz
new file mode 100644
index 0000000..adf4b6f
--- /dev/null
+++ b/armadillo-4.400.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:af50951dd2b17562df93cfe0d5d73e9b9b008b7b2145a5c9b39687ef8e985996
+size 5340780
diff --git a/armadillo.changes b/armadillo.changes
index ff57b82..4addee2 100644
--- a/armadillo.changes
+++ b/armadillo.changes
@@ -1,3 +1,20 @@
+-------------------------------------------------------------------
+Wed Aug 20 18:31:39 UTC 2014 - badshah400@gmail.com
+
+- Update to version 4.400.1:
+  + No changes documented
+- Changes from version 4.400 (Winter Shark Alley):
+  + Faster handling of subvectors by dot()
+  + Faster handling of aliasing by submatrix views
+  + Expanded batch insertion constructors for sparse matrices to
+    add values at repeated locations
+  + Added clamp() for clamping values to be between lower and
+    upper limits
+  + Added gmm_diag class for statistical modelling using Gaussian
+    Mixture Models (GMM);
+  + Includes multi-threaded implementation of k-means and
+    Expectation-Maximisation (EM) for parameter estimation.
+
 -------------------------------------------------------------------
 Wed Jul  2 20:17:08 UTC 2014 - badshah400@gmail.com
 
diff --git a/armadillo.spec b/armadillo.spec
index 61f5199..481f440 100644
--- a/armadillo.spec
+++ b/armadillo.spec
@@ -19,7 +19,7 @@
 %define soname libarmadillo4
 
 Name:           armadillo
-Version:        4.320.0
+Version:        4.400.1
 Release:        0
 Summary:        Fast C++ matrix library with interfaces to LAPACK and ATLAS
 License:        MPL-2.0