diff --git a/isl-0.16.1.tar.xz b/isl-0.16.1.tar.xz
deleted file mode 100644
index 972b9dc..0000000
--- a/isl-0.16.1.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:45292f30b3cb8b9c03009804024df72a79e9b5ab89e41c94752d6ea58a1e4b02
-size 1449164
diff --git a/isl-0.18.tar.xz b/isl-0.18.tar.xz
new file mode 100644
index 0000000..4765a70
--- /dev/null
+++ b/isl-0.18.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0f35051cc030b87c673ac1f187de40e386a1482a0cfdf2c552dd6031b307ddc4
+size 1475708
diff --git a/isl.changes b/isl.changes
index e1c3b30..9ae45b5 100644
--- a/isl.changes
+++ b/isl.changes
@@ -1,3 +1,25 @@
+-------------------------------------------------------------------
+Tue Jan 31 14:05:40 UTC 2017 - rguenther@suse.com
+
+- Update to 0.18
+  * improve elimination of redundant existentially quantified variables
+  * improve coalescing
+  * improve parametric integer programming
+  * preserve isolate option in isl_schedule_node_band_split
+  * print AST nodes in YAML format
+  * minor improvements to Python bindings
+- Inherits update to 0.17.1
+  * fix bug in coalescing treatment
+- Inherits update to 0.17
+  * optionally combine SCCs incrementally in scheduler
+  * optionally maximize coincidence in scheduler
+  * optionally avoid loop coalescing in scheduler
+  * fix handling of nested integer divisions
+  * optionally detect min/max expressions during AST generation
+  * minor AST generator improvements
+  * simplify stride constraints
+  * improve support for expansions in schedule trees
+
 -------------------------------------------------------------------
 Sun Feb  7 09:08:25 UTC 2016 - mpluskal@suse.com
 
diff --git a/isl.spec b/isl.spec
index 5ab6230..a0be5c7 100644
--- a/isl.spec
+++ b/isl.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package isl
 #
-# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -18,7 +18,7 @@
 
 %define islsover 15
 Name:           isl
-Version:        0.16.1
+Version:        0.18
 Release:        0
 Summary:        Integer Set Library
 License:        MIT