diff --git a/.gitignore b/.gitignore
index e87f09d..3ad49d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
+/gtkwave-3.3.18.tar.gz
 /gtkwave-48.png
 /gtkwave-32.png
 /gtkwave-16.png
-/gtkwave-3.3.17.tar.gz
diff --git a/gtkwave.spec b/gtkwave.spec
index 6548848..88cb964 100644
--- a/gtkwave.spec
+++ b/gtkwave.spec
@@ -5,7 +5,7 @@
 
 Summary:	Waveform Viewer
 Name:		gtkwave
-Version:	3.3.17
+Version:	3.3.18
 Release:	%{?prerel:0.}1%{?prerel:.%{prerel}}%{?dist}
 License:	GPLv2+
 Group:		Applications/Engineering
@@ -130,6 +130,22 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 %{_mandir}/man5/gtkwaverc.5*
 
 %changelog
+* Wed Dec 29 2010 Paul Howarth <paul@city-fan.org> 3.3.18-1
+- update to 3.3.18
+  - minor bug fixes for corner cases
+  - assembler fixes for x86_64
+  - preliminary support for variable length records in FST files
+  - added fstUtilityBinToEsc and fstUtilityEscToBin for conversion of binary
+    data to C-style strings
+  - allow escaped strings in VCD files to encode a richer set of data for
+    non-standard "s" VCD records
+  - to comply with fst2vcd, vcd readers now handle "string" variable type
+    keyword
+  - add detection for Verilog XL-style VCD identifiers in all VCD loaders in
+    gtkwave in order to aid in indexing
+  - more warnings fixes
+  - fix mif_draw_string so it does not emit escaped character codes
+
 * Mon Nov 29 2010 Paul Howarth <paul@city-fan.org> 3.3.17-1
 - update to 3.3.17
   - added sanity check in dynamic alias reconstruct routine in FST reader and
diff --git a/sources b/sources
index f97c432..077bd06 100644
--- a/sources
+++ b/sources
@@ -1,4 +1,4 @@
-c073cdd8ef2692de5bee99bb6e74a72a  gtkwave-3.3.17.tar.gz
+63d98e374d6dc0d9c70b52e4fc6960b8  gtkwave-3.3.18.tar.gz
 4fdb2fec2b6d9732e2f111c6cd63b788  gtkwave-48.png
 410c50539074403d3a3240f7c9209b11  gtkwave-32.png
 2cc7754492918591242bc38a0b11d2a5  gtkwave-16.png