diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..c95bd15
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<constraints>
+  <hardware>
+  <processors>4</processors>
+    <memory>
+      <size unit="G">4</size>
+    </memory>
+  </hardware>
+</constraints>
diff --git a/racket-6.10.1-src.tgz b/racket-6.10.1-src.tgz
deleted file mode 100644
index dfc413e..0000000
--- a/racket-6.10.1-src.tgz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:cca96a5b70201398fad5cf37e501dee51b8186acc6353cf9f101d37344377f6c
-size 22239896
diff --git a/racket-6.11-src.tgz b/racket-6.11-src.tgz
new file mode 100644
index 0000000..8caae5c
--- /dev/null
+++ b/racket-6.11-src.tgz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5c0f57a5f65d4e535ef079055447ef4cbb89dfda1e4988f1a25212d10b3867da
+size 22289728
diff --git a/racket.changes b/racket.changes
index a435011..80c5ac5 100644
--- a/racket.changes
+++ b/racket.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Wed Dec 27 08:46:28 UTC 2017 - kgronlund@suse.com
+
+- Update to Racket 6.11
+  * Typed Racket supports refinement types and dependent function types.
+  * DrRacket’s Program Contour is significantly more efficient
+  * The web-server/formlets library produces formlets that are serializable
+  * The db library supports the Cassandra database
+- Ensure more system resources when building package 
+
 -------------------------------------------------------------------
 Sun Sep 24 21:10:21 UTC 2017 - olszewst@gmail.com
 
diff --git a/racket.spec b/racket.spec
index b8efc21..1b44731 100644
--- a/racket.spec
+++ b/racket.spec
@@ -18,7 +18,7 @@
 
 
 Name:           racket
-Version:        6.10.1
+Version:        6.11
 Release:        0
 Summary:        Scheme implementation with teaching tools
 License:        LGPL-2.1+ and GPL-3.0+