diff --git a/Changes.txt b/Changes.txt
index 0389ead3..3f8fba39 100644
--- a/Changes.txt
+++ b/Changes.txt
@@ -2,6 +2,12 @@
 @page changes Changes
 
 
+## 0.5.0 January 5 2017
+
+- Added chart and plot area formatting. See `chart_chartarea_set_line()` and
+  `chart_plotarea_set_line()`.
+
+
 ## 0.4.9 January 4 2017
 
 - Added support for chart patterns. See @ref chart_patterns.
diff --git a/include/xlsxwriter.h b/include/xlsxwriter.h
index 5bbffa62..30253e69 100644
--- a/include/xlsxwriter.h
+++ b/include/xlsxwriter.h
@@ -18,6 +18,6 @@
 #include "xlsxwriter/format.h"
 #include "xlsxwriter/utility.h"
 
-#define LXW_VERSION "0.4.9"
+#define LXW_VERSION "0.5.0"
 
 #endif /* __LXW_XLSXWRITER_H__ */
diff --git a/libxlsxwriter.podspec b/libxlsxwriter.podspec
index 4b8bad5f..ef9316c1 100644
--- a/libxlsxwriter.podspec
+++ b/libxlsxwriter.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name                  = "libxlsxwriter"
-  s.version               = "0.4.9"
+  s.version               = "0.5.0"
   s.summary               = "Libxlsxwriter: A C library for creating Excel XLSX files."
   s.ios.deployment_target = "6.0"
   s.osx.deployment_target = "10.8"